Cave of the Abaddon

The Cave of the Abaddon is a location in the Divide

Layout
The cave consists of a long cave formed mainly by collapsed buildings. It is the only way to Ulysses' Temple. The buried buildings, comprised of a stairwell and two rooms, serve as a transitional area linking the cave to the Boxwood Hotel roof.

Sunflower Summers' diary, for the Nostalgia challenge, is located in a suitcase near Summers' remains, along the northern wall of the first chamber of the cave. An Auto-Doc can be found near the exit to the buried buildings. Inside the buried buildings, a usable bed and a RALPHIE poster are located in the second room.

Loot

 * Eyebot upgrade circuit board - When facing the entrance of the cave from the clearing, detonate the nuke embedded in the rocks to the east. After the detonation, climb the beam on the ground marked with a blue Old World flag, and the circuit board will be on a destroyed eyebot lying at the end of the beam.
 * A copy of D.C. Journal of Internal Medicine - In the second room after entering the door to the buried buildings, between a toppled desk and chair.

Appearances
The Cave of the Abaddon appears only in the Fallout: New Vegas add-on Lonesome Road.

Behind the scenes
"Abaddon" is an intensive form of the Hebrew word Abad, meaning "destruction." In the Christian Bible's Book of Revelation, Abaddon is the name of a male angel seen in a vision as a king of an army of locusts.

Bugs
The Auto-Doc does not remove addictions, although it performs its other functions, even after patch 140525.