The Well of Ascension
Everything I thought I knew from Final Empire is turned on its head!
Vin and Elend get married, Luthadel is sacked, but Vin realizes she has powers unlike any other Mistborn. Goes to the Well of Ascension to destroy the Deepness, only to set free some being that has been manipulating the Terris religion for that very purpose. The Hero of Ages is a deception wrought by this being.
Looking forward to the next volume.