The Dark Crystals

Quest giver: Maria Starforge
Requirements: The Departed
Reward: Fangbreakers +40, Grubby Were-Orc Claw

Once you zone into the instanced version of Bloodmoon Keep take the northeast tunnel. Start by killing jailors to find 5 Bloodmoon Shackle Key. Give these to the miners and they should give you a Bloodmoon Crystal Sample and after the fifth slave is freed a Bloodmoon engineer spawns in the western room. Kill it and loot a Bloodmoon Torch. In the northwest corner of the engineer's room is an explosives cache, click the torch near it to start a timer. Roughly once a minute you will get an emote about about the fuse and two orcs run in and attack. Keep killing the orcs until the fuse is nearly gone then get out of the room as a large AE goes off when it explodes. Return the Crystal Sample to Maria to complete the mission. Nothing in the instance respawns.