The Hazel Wood by Melissa Albert

Alice Prosperpine is the grand daughter of a famous novelist with a mysterious allure. She wrote a strange collection of fairy tales about the "Hinterland" and then lived as a recluse in her estate called the Hazel Wood. Alice and her mother have been on the run all of Alice's life going from city to city like gypsies until her grandmother's death. Alice is back on the run after her mother is taken and strange people are after Alice. Joining forces with a Hinterland groupie, Alice goes out in search of Hazel Wood and her mother. What she discovers is not what she expected. This Alice, like the other fairy tale, tumbles head first down a very dark rabbit hole into a spirit world she didn't know existed.
This is a fairy tale turned horror story - a dream sequence that is worse during the day than at night where reality is what you fear the most. Great young adult crossover this will appeal to anyone who likes their fairy tales dark and fearful.