The Shadow Chronicles: The Cursed Key -- Lucy S. Mae, Paperback

After Sammi Clover, a friendless high schooler has her world shattered when she's attacked by the monstrous Shadow Queen, she flees to the hidden, magical town of Ivy City. Beneath all of its heroic history and friendly residents, Ivy City has buried many dark, and dangerous mysteries. Here, Sammi finds herself caught in a dangerous prophecy that she is forbidden to speak about. To prove her innocence and go home she forms a reluctant alliance with the reckless and irresponsible Ash Collins. Both with their own sets of secrets, they must learn to fight shadows, uncover century old secrets and try to survive a world that wants them both dead