l once knew a man who was afraid of nothing. No monstrosity man made nor fictitious could subdue his spirits, and the mere mention of the word 'supernatural' would elicit a most cynical example of laughter. This bravery was both his greatest strength and his most profound weakness, for ignorance and heedlessness can often be mistaken for a deep and foolhardy sense of courage. He was to learn the limits of his bravery down in those oppressive tunnels, deep below the streets of Amsterdam. His name was Henke, due mainly to his Finnish ancestry on his father's side, and although his parents had passed away at an early age, it was clear that he believed his courageous convictions could be attributed to his father's character. I had met Henke four years earlier while travelling with some friends on a rather common rites of passage: Backpacking through Europe during a university break. He and a few of his friends were on a similar trip and happened to be staying at the same youth hostel as myself and my companions in Rome. We all got on well, but both Henke and I struck up an immediate rapport with one another as he was a keen musician and I was at the time still filled with the self promise, or should I say delusion, of stardom through my own musical pursuits. This friendship continued onwards and we maintained it via email; swapping musical discoveries, talking about politics, and generally getting to know one another as best two people can through simple correspondence. I grew to enjoy our friendly debates over the years and on a few occasions we even visited one another. Henke moved around a lot and as such it gave me a good excuse to visit a number of mainland European countries, not to mention that he always knew which local pubs served the best beer and which restaurants were to be best avoided. Last year I visited Henke in Amsterdam. The Dutch city seemed to be a good fit for him as he always liked to live in the liveliest of places, and with countless meandering canals, bridges, and walkways swamped with millions of tourists every year, Amsterdam, for Henke, felt like the very embodiment of life and vibrancy. At the time he had been recently hired to carry out some important maintenance work on the Rijksmuseum, which is one of Amsterdam's most impressive buildings, and this seemed to have rooted him to the one place for longer than was usual. When I met him in a small darkened corner of a local pub, well away from the burgeoning tourist trade, I was shocked at his appearance. Here was a friend I had grown to know as being larger than life, exuding bravado, and yet I was presented with a shell of a man, slight in stature and racked with self doubt. He proceeded to impart on me the circumstances which resulted in his precarious condition, of which I will relay to you now. Henke had been working as a civil engineer for some time and relished the challenge of renovating and maintaining the Rijksmuseum, a building with such a long and compelling history. The museum houses Amsterdam's finest collection of historical relics, and being given access to some of its more hidden places which are inaccessible to the general public, piqued Henke's fascination for the obscured and unique. He had been hired most specifically to lead a maintenance crew which had been assigned to assess and repair the building's foundations. This oldest part of the structure dated back centuries and had a most bizarre and, it must be said, quite horrific history. The Rijksmuseum itself had been constructed in 1885, but what it had been built upon possessed a much older and interesting history. In the bowels of the building under its marble floors and deep red brickwork, lay a labyrinth of abandoned tunnels which at one time served as part of the old city's sewer network. They had long been disused and fallen into disrepair but they were nonetheless an essential part of the building's foundations and had to be assessed and repaired, otherwise the entire structure would be in danger of subsiding. The ground and upper levels of the museum were beautiful and displayed many wonderful historical relics from all over the world. So welcoming and warm was the atmosphere of the building that it was difficult to imagine the darkness which festered below. After some quick words with the building manager, Henke proceeded to an old, seldom used room at the back of the museum which housed a rather antiquated, creaking, and cage-like elevator which was being used to access the lower levels and sewers underneath. Pulling on a pair of dirt covered yellow overalls, complete with hard hat and head lamp, Henke entered the elevator for his first descent. On his trip downwards towards the abandoned sewers, Henke thought to himself that those of a nervous disposition may let such a dank and isolated place prey on their minds. This may have explained why the previous man in charge of the repairs had left so abruptly, citing nervous exhaustion and refusing to ever so much as set foot in those pitch black corridors of cold stone ever again. The elevator winch and engine stuttered as it lowered Henke down four levels into the basement. With each passing floor he observed a slight dimming of the lights and each subterranean level appeared more sparse, and stone-like than the one before. A rusted plate attached to the elevator betrayed its age. It struck Henke that the year of its construction, 1932, must have been amongst the last periods of maintenance carried out there before the persecution of the Jewish people and the outbreak of war in Europe. Henke knew much of the shameful history of the region as he was part Jewish and his great Grandfather had died during the holocaust. Many had fled to Amsterdam for sanctuary from the Nazi regime in the early 1930s, but the long blighting arm of Hitler's horrific 'final solution' eventually reached the borders of Holland, sweeping many thousands away to those shameful and barbaric concentration camps. The elevator shuddered to a halt and after forcing the rusted sliding door aside, Henke disembarked. The tunnels - comprising Amsterdam's disused sewer network - were curious in construction and steeped in a history which stretched back much farther into the distant past than that of the museum itself. Having spoken to his employers, Henke had been specifically told to pay heed to the assessment and repair crews' knowledge of the tunnel layout, as the place could be disorientating and as the lighting system required to illuminate repair work had not been fully installed yet, that he would find it all too easy to get lost. Most importantly Henke was informed that the two-way radios normally used to communicate between team members had been playing up, and that they were very unreliable due to interference, probably produced by nearby metallic deposits in the ground. This meant that communication between his team members would have to be carried out verbally, or by using the light from their torches to convey simple messages via Morse code; this was particularly useful in the longer tunnels. In any case, it struck Henke that the catacombs below really were isolated, lonely places. Care must be taken. Henke was greeted by Jones, his second in command. Jones was a substantially stout fellow and was rather humorous in nature. He debriefed Henke on the current progress being made by his new team, informing him that the initial mapping and assessments of the tunnels had gone well. All in all there were 16 four man crews, each of which would be assigned a section of the sewers to repair. Henke would supervise two of the crews which were working in one of the more isolated tunnels. After walking for 15 minutes Henke arrived at the area which would be his workplace for the next few months. The sound of occasional drilling could be heard in the distance as the workers continued to install the still non-operational lighting system. As Henke's men would be working further away from the other crews, it seemed logical - although not desirable - that they would have a lighting system installed last. Each passageway seemed oddly shaped with no two tunnels being quite alike, this entire section of the sewer was in fact so antiquated that it had been built long before the careful planning of such constructions had become commonplace. One tunnel would arch onwards for over several hundred metres in a strange semi-circle, while others bisected it at right angles, carrying on in a regimented straight line into the darkness. Henke even found a passageway which seemed to dip and rise only to slither its way along in an unnatural S-shape. Some tunnels seemed to go on forever, others stopped abruptly as if the original builders had been unable to complete their work, leaving in a hurry. Jones tried to keep the conversation light and with his experience of walking through the tunnels for the past two months, Henke was glad to have a guide to show him the way. Waiting in a large alcove were four of Henke's team. They would work this section of the tunnels during the day, while the other shift would take over later, working through the night. Jones introduced each of them. They seemed nice enough, but Henke was surprised to find the men largely in the grips of silence. In his experience humour was normally found in abundance, with repair crews using it to slice through the monotony of working in such cramped and repetitive conditions. Here though, he found them uttering not one word, sitting in silence in that imposing alcove, removed from any consideration of camaraderie or fellowship; the only inference that they were not a collection of subterranean statues was the occasional movement of their head lamps altering the shadows around them. They seemed wholly disconnected from, not just each other, but the very environment in which they worked. Henke brushed this feeling of unease aside and committed himself to cultivating conversation; if these men were in some way angry or uncomfortable with one another then Henke would soon lay that to rest; a happy workforce is a productive one. The first order of business was to survey this section of tunnels and decide where repairs were most pressing. Preliminary assessments had already been made, but Henke liked to evaluate any repair project he was involved in from the ground up. Henke walked the catacombs with his team and noticed immediately that they were still on edge, that they seemed frightened in an almost childlike way. No amount of questions casual or otherwise could elicit anything other than one word broken replies. As they toured the numerous tunnels, lighting their way with the small torches attached to their safety helmets and taking notes about failing walls, water damage, and estimations of any possible repair time, Henke pressed the men on their obvious sense of fear, asking why such an experienced crew who no doubt had worked in many tunnels before, were so apprehensive of mere bricks and mortar. They avoided the questions, looking nervously at one another and changing the topic of conversation with mono-toned lethargy whenever it veered towards their experiences of the old sewers, or of their previous boss's unceremonious departure from the job. It began to dawn on Henke that the men's verbal and physical awkwardness was not the result of tensions between workers, but rather of a deep seated and worrying apprehension; of what he did not know. What was clear was that his team seemed to be counting down the minutes until their shift ended, when they could finally clamber out of the darkness into the safety of the world above. As the beam from his head lamp trickled over the damp and crumbling brickwork of the tunnels, Henke again conceded to himself that some may find such a setting unnerving; but not him. Whatever had caused such trepidation and disquiet amongst the men working down there, was surely a simple case of idle superstition, mischief making, and the quite understandable psychological toll of working in a dark, cramped, and forgotten part of the world. Even Jones, who had through most of the catacombs been jovial and talkative, now adopted the same sullen expression and seriousness of disposition as the others. The passages wound and meandered their way through the ground, long steady trajectories intermittently and abruptly interrupted by sharp blind corners which made it difficult for Henke to identify exactly where they were. There were so many winding corridors that Henke felt slightly disorientated and was ready to joke with his men that if they didn't like him as a boss that they could probably leave him there and he would never find his way out. But his men were no longer with him. He was standing at the mouth of a tunnel and while he had continued onwards talking, trying to fill in the difficult silences, his men had stopped at the last junction. They stood motionless some twenty feet behind, staring at Henke with blank expressions occasionally betrayed by the slightest flicker of a very real and gripping emotion beneath; a look of suppressed terror. When he asked why the men were not following, they whispered in reply that where they stood was where the last of the repair work was needed. Pulling out a map and perusing it intently by the light of his head lamp, Henke surmised that he must have wandered into the most remote part of the sewer network, at the back of the catacombs, and while the tunnels continued into the foreboding distance this must have marked the boundary of the Rijksmuseum's foundations. What confused him was that where he stood had been marked for repair. He was standing at the entrance to what appeared to be a rather innocuous tunnel, but on the wall next to the opening Henke could clearly see that someone had placed an identification plaque there, marking it for repair. It read 'Tunnel 72F: Water damage & failing brickwork'. After double checking his map, it was clear to Henke that tunnel 72F was indeed still under the Rijksmuseum foundations and had to be appraised and repaired, but when he told his men this they simply informed him that where they stood was as far as they would go. Anger began to take over, accompanied by frustration that the team he was supposed to be supervising were being so difficult, but even raising his voice and demanding that they head into the tunnel did not seem to move them. Just as things became heated and Henke began demanding that the men do as he say, Jones interjected: 'We've worked down here for two months, Henke. This is a good, hard working, talented crew you have. They will do exactly as you ask, when you ask it, but you will have to accept that for them, and me, our work stops at this junction and that none of us will go near tunnel 72F. Whether you want to believe it or not, there is something in there.' Taking a deep breath and calming himself, Henke explained to his men that he understood the stress induced by working in such an environment for an extended period of time, but that repairs in that tunnel had to be carried out. He would talk to them later about it, but for now he would carry out the survey himself. As Henke stepped over the threshold and into the apparently forbidden tunnel, Jones and the other men protested vehemently, shouting on Henke to leave the passageway immediately, but he saw this as foolish. He was not to be swayed by unsubstantiated, superstitious nonsense. There was nothing in this tunnel to fear, and once more Henke would prove to others that they should not be so scared, by stepping up, being a man, and pushing forward into places others who are more timid in nature fear to tread. It was a point of pride for Henke, he believed in always being bold. While the tunnel seemed fairly common in its construction at first glance, as Henke progressed deeper into the darkness it was apparent that this was unlike any sewer he had seen before. The ground was uneven; the floor dipped and rose much like some of the other tunnels, but what was peculiar was how fractured the surface felt under his feet. The ground was obscured by a thick, almost oily water which in places reached up as high as his knees. He trudged through the stagnant water slowly, not because he was scared, but simply to insure he had a sound footing. One thing was apparent, however long the water had lay there it was long enough to fester and produce an unpleasant, rotten stench. The walls were of a different, much older composition than most of the brickwork he had seen in the sewers elsewhere. Whatever the material was which had been used, it was hundreds of years old and was obviously failing, with long penetrating cracks scarring the surface of the increasingly unstable walls and ceiling. The light from Henke's head lamp was enough to illuminate much of the tunnel, but as he ventured further towards what he thought was a dead-end, he realised that the passageway was narrowing and that the tunnel itself did not stop there, but rather tapered slightly before curving abruptly into a blind corner. Henke estimated that he was around 80 feet into the sewer and while his curiosity for what could be beyond that corner urged him to move forward, he believed he had made his point to his men and would now ask them to abandon their fears and enter the tunnel with him. He unholstered the black hand held radio which all the workers had been issued with from his side, and began requesting for Jones and the others to meet him at the corner of the tunnel. No one responded, and nothing but a quiet buzz could be heard from the radio speaker. Of course Henke now remembered that he had been warned about how unreliable the radios could be, but just as he was about to turn and shout on his men, something caught his eye. Surely not. There was nothing in this old tunnel but stagnant water and himself! But pushing relentlessly against Henke's bravado and self assured disposition was the creeping reality that something was standing at the end of the tunnel. Obscured by the turn, Henke could only see a glimpse of it, but it was unmistakable. A ragged piece of cloth poked out from around the corner and although Henke's mind was unwilling to accept it, the cloth was obviously part of a sleeve, a sleeve which contained an arm, of who's or what's he did not know. Disbelief. Stubbornness can be an effective tonic for even the most horrifying and unbelievable of situations. Henke's belief in himself and his long history of triumphs over adversity welled up inside of him, filling his chest with pride, and with a strong confident stride Henke marched towards whatever was behind that corner. The slush and slosh of the black water echoed throughout the tunnel as he made his way to that blind turn. Apprehension now turned to sadness and empathy, for standing there, shivering and dishevelled, was a girl who could not have seen more than 13 years. Her face and hands were blackened with grime and dirt hiding her pale and malnourished frame. A ripped shirt was all that she wore, hanging from her loosely with much of her body exposed to the cold of that dank, isolated place. Gazing at him between strands of dark matted hair, Henke was struck by how beautiful the young girl was, and how afraid she must have been. At first he believed that somehow she must have made her way into the sewers and lost her way, but no matter how softly he asked her she would not answer, appearing afraid and nervous. Henke tried his radio again, but was greeted with the same meaningless static. Regardless, he had to get her out of that tunnel, back through the sewers and into the Rijksmuseum and seen by a doctor. He did not want to shout on his men as it may have added to the girl's disquiet, so he decided to lead her out of the passage himself. As he approached, Henke spoke gently to the girl explaining that he would take her up above to safety. She seemed terrified of him, and this made Henke