The details are a little murky for me, but to summarize:
Otto manages to bring back his Kallen to life at the expense of his life.
Kiana becomes the Herrscher of Finality, Mei the Herrscher of Origin, Bronya the Herrscher of Truth. Yes, a lot of ass pulls-just for them to stalemate against Kevin until the power of friendship and plot armor kicked in.
The Durandal look-a-like is Mistletainn (or however you spell it) who is the stigmata manifestation of Schariac (Durandal and Kiana's mother side of the family.)
