After a moment, you begin to feel a tad strange. Peering upstream, you discover that what you thought was a brook created by the loving work of mother nature is actually fed by a drainage pipe of some sort. Falling to the ground as queasiness overtakes you, the thought that perhaps drinking from random unfiltered sources of water in a well-populated area is an exceptionally stupid thing to do digs its way into your mind. After several moments, the pain boiling within your guts becomes too much to bear and you pass out.
You come to after who knows how long, and blink in confusion. Finding that the pain is gone, you raise yourself up only to glance around uncertainly. Everything you can see has seemingly lost its color and been swathed in shades of grey. Not knowing what to think, you are surprised when you look down at yourself and find that you are the only thing in eyeshot which still retains its natural hues. Not having the first clue of what is going on, you just sit in place with a blank look on your face. You are eventually shocked out of your reverie by the sudden knowledge that you are not alone, and when you leap to your feet and wheel around to see who it is that has snuck up on you, your jaw drops. Standing seven feet tall and covered head to toe in black robes is what can only be described as the most stereotypical depiction of Death you could imagine. Your mouth opens and closes a few times in some sort of denial of what you are seeing, but in the end it is 'Death' who finds the first vocalization in your meeting.
"You know," a grating voice reverberates from beneath the hood of the cloak, "you are the first person who I have ever had to pick up that died from drinking out of a stream directly fed from the local sewage treatment plant. Darwin would be so proud. Now, shall we go?"