Crota's End

Crota's End is the current placeholder name for the raid in The Dark Below expansion DLC. Players have found this out due to a glitch in Destiny. Bungie has confirmed that this information is accurate as of their current progress.

Story
It is suspected that you will journey deep into the Hellmouth to slay the dark god Crota. The current description of the raid reads simply "He waits in the dark below." It is a level 28 raid that takes place in the Ocean of Storms.