Cold Days is by Jim Butcher. The 15th installment of the beloved Dresden Files series. Harry is now the Winter Knight and subject to Mab, the Queen of Air and Darkness. Her word is law and her first command is to kill another immortal. As Harry struggles to remain himself and keep from turning into Mab's evil creature, he discovers he must reluctantly gather his former friends and allies to prevent an upcoming disaster that could destroy both the mortal world and the Nevernever. Maybe death wasn't really so bad after all! One of the best books in the series. Extremely fast-paced and action-packed. I feared killing Harry and bringing him back might be a jump-the-shark moment. I've never been so happy to be wrong.
Ratings: 11th grade - 9 out of 10 - P (profanity) - V (violence) - AC (mature thematic content).