White Night - Butcher, Jim

White Night is the ninth book in The Dresden Files series.  After saving her life in Proven Guilty, Molly is now Dresden's apprentice.  That adds a new wrinkle to the series.  Harry is still fighting vampires, but now the white court is the problem.  Practitioners are dying or disappearing and it appears Harry's half-brother Thomas might be involved.  The action is furious as always and most satisfying.  Very highly recommended.