SPOILERS for The Stranger in the Mirror by Liv Constantine

 

If you continue reading, you will be exposed to spoilers about the above book. Proceed with caution.

Cassandra was really Amelia. Julian killed his first wife, Cassandra. He brainwashed Amelia to think she was Cassandra. She ran away from Julian when she found out. Which is how she gets amnesia. Edward and Gigi and Blythe and Gabriel figured it out. They go to rescue Amelia, but she rescued herself by stabbing Julian. Julian is in jail. Amelia becomes the foster mother to Valentina.