Mortal Gods by Kendare Blake
September 1st, 2014 from Orchard Books
(unofficial blurb that I didn't make up myself, but came from a pretty rad source)
Cassandra Weaver is a weapon of fate. The girl who kills gods. But all she wants is for the god she loved and lost to return to life. If she can't have that, then the other gods will burn, starting with his murderer, Aphrodite.
The alliance between Cassandra and Athena is fragile. Cassandra suspects Athena lacks the will to truly kill her own family. And Athena fears that Cassandra's hate will get them all killed.
