1993’s Personal Darkness is the second volume in Tanith Lee’s Blood Opera trilogy.
Even as the embers of the House are cooling, ancients Malach and Athena retrieve the surviving Scarabae. The hapless Rachaela is carried along in their wake. The Scarabae have vast resources. The loss of the House is merely the latest forced relocation among many. The dead cannot be saved but the Scarabae can rebuild.
Rachaela’s demon-child Ruth, last seen fleeing from the corpse-filled House Ruth herself set on fire, has no interest in joining her family in their new stronghold, wherever that may be. She has an entirely different goal.