Helena
Helena
a Blackguard
Helena, a Blackguard, is first encountered in the The Chamber of Sins Level 2 in Act 2. When Piety again runs from the player, Helena's voice can be heard crying for help, because Fidelitis, the Mourning has captured her. Once disposed of, Fidelitis leaves behind the 
Baleful GemBaleful GemThe withering glare of corruption, made
corporeal and pellucid in crystal.
and Helena wants to meet the player in The Forest Encampment.