Originally, this quest was part of a Live Event during the Grael Story Arc. The portal opened up during the From the Darkest Depths event and remained open until it was retired during the Filling in the Blanks event. During the Shadow Raids, Shadow Shards could be gathered to obtain a device. Turning in this device and the Amulet after killing the Shadow Vortex to Riordin Nightbane gave the Grael's Claw, a mukkir slaying UA weapon.