Your name is Miles Derby. You live at 6740 Camp Avenue, Lineton. You are a stock broker by trade. Right now, you are falling helplessly through the darkness, tumbling end over end into the void.

One moment you are walking through your lavish home, the next you are falling away into a yawning, bottomless pit. Eddies of raw, frightening energy swirl around you and take vicious, distasteful forms.

You land with a horrific crunch, and an unbearable pain strikes your right leg. Your eyes detect a network of walls around you, too high for you to climb, but low enough that you can see the yawning roof of a cavern far overhead. The walls are rough, gritty black rock. You reach out to touch it, but recoil when it stings your hand.

You detect a noise suddenly, coming from out of the dark down a nearby corridor. You can just make out something lumbering towards you, a twisted hairy giant with arms outstretched and mouth hanging open in a wordless groan. You scream, but nobody can hear you now.