Upon entry, the party is attacked by a Queen Spider accompanied by several other spiders. As in any spider encounter, electricity is the best element and nature is the least effective. Like the Monstrous Spider in The Deep Roads Expedition, the Queen Spider cannot follow you up the nearby wooden stairs, so use them to corral the enemies behind the larger queen. Carefully use AoE attacks to soften the Giant and Poisonous Spiders so the ones that slip past her can be killed quickly. Turn the corner to break the poisonous spiders' lines of sight and force them to come closer. Beyond this, the fight isn't very difficult.
There is a Corrupted Lyrium and a Crate upstairs. Loot everything else in the area, then leave.
Return to Jansen to complete the quest. Upon exiting this map and returning (even to enter the nearby Rotting Cave for the Forbidden Knowledge quest), Jansen informs you of a horde of undead that's come through another passage they opened. This begins the next quest, Cavern of Dead.
- 275 XP (for the fight)
- 1000 XP (quest completion)
Unlocks Cavern of Dead quest. To trigger the quest, leave the Bone Pit, travel to any other location, then go back and talk to Jansen.
- The Queen Spider can be easily kited out of range on the ledge where the Corrupted Lyrium is looted.
- If you are seeking the Supplier achievement, be sure to grab the aforementioned lyrium.
- If you explore the outside area of the Bone Pit you can find a Glitterdust and a cave entrance for an Evil Tome and another Corrupted Lyrium. There is also a Chest - Complex to the left of Jansen (30 cunning to open – 150 XP).