You set foot on the Town of Tristram. You have spent the last five years learning about the evil that is said to dwell in the labyrinth below the town. Gathering your equipment, you set off to the Monastery, once known as a holy place, but now believed to be haunted by those whom were meant to rest there.
The Monastery gleams with an eerie hellfire glow, and you proceed through the horrific doorway. A carcass lies beside the entrance, but you take no interest, and you continue.
You finally reach the labyrinth where a stench of decay pierces the air. You hear the groans of the undead, and the scattering of unknown creatures. You ready your trusty sword.. and pray.
A horde of undead appears from nowhere. You smash through the pile of skeletons and zombies only to encounter a demonlike version of the dog. That creature also stood no chance, so you continue...
Further down the passage, you see a torch glitter in the distance. You walk slowly and carefully, and finally reach the gleam. A rune-like marking is etched into the wall. Your curiousity forces you to fiddle around with it.. thus opening a secret passage, to an unknown darkness.
You grab the torch, and proceed down, and you are greeted with shelves of books containing spells and knowledge, all used to defeat the evil one. You arrive here.