AvailabilityEditDropped by a respawning Crystal Golem located near the beginning of The Duke's Archives. The Golem will only drop the pendant if Dusk of Oolacile has been rescued from within the Golden Crystal Golem, which can be found in an alcove past the Hydra in Darkroot Basin.
The pendant can be obtained even if the player has killed the Golem prior to rescuing Dusk.
Possessing the Broken Pendant will cause a black portal to spawn at the location where Dusk was rescued, allowing the player to travel back in time, accessing the AotA content.
Upon interaction with the portal, the hand of Manus reaches through time and pulls the player in a violent manner.