Giant Centipedes

Be warned! While the Giant Centipede looks easy to slay, a simply clumsy and disgusting insect grown too big, its poison is the worst of all beasts, causing death within less than a minute! Fight these beasts with fire, or you will surely perish a fast and painful death.

They can be found in dungeons and caves.

Trivia

 * It is actually impossible to find one of these creatures in-game. They are obviously an artifact that was dropped during development, but stayed in the manual.