Spider Nest

Spider Nests are rare mini-biomes that can be located underground, noted by the black background wall and the numerous webs filling the area. The Cobwebs filling this area rapidly grow back, which is a unique feature of the biome. Spider Nests are the only location where one can find Web Covered Chests and all unique treasures discovered therein.

Trivia

 * One of the background pieces appears to be someone bound in web. This could be a reference to the actual Lost Girl.