MAP30: The Lair is the second secret level of Doom 64, accessible from MAP12: Altar Of Pain. It contains the same background music as level 12, Altar Of Pain. This level consists of a medium-sized structure with an upper, open area and a winding basement that houses monsters of varying degrees of strength and, for all intents and purposes, this is where the player will first come across arachnotrons (if the player didn't already go through MAP32: Hectic). The objective of the level is to obtain the demonic Artifact.