Should you spare Xanthe in The Blood of Dawnwalker?

Summary

Deciding whether to spare Xanthe and make a deal in Blood of Dawnwalker is a really tough choice. On the one hand, she's an evil ancient vampire who kidnapped and killed a bunch of innocent women, but she was only using Brencis as a tool of convenience. That might be enough for you to ponder what advantage an alliance with her could bring. Obviously, this…