The Cursed Swamps are a foul place in Meatworld, with fog so heavy, it almost never shows up on maps. It is shaped like a giant skull, with two major landmarks. Endrew's lab is one of these. It is home to Alchemist Endrew, who does his experiments there. After they escaped, the giant "spiders" Endrew was working on made a nest somewhere in a giant crater in the swamps.
On the horrible day the experiments escaped, a few heroes arrived and fought off the spiders, but other than that, no creature besides the Alchemist himself has ever journeyed there and escaped alive.