Bitter Dreams - The Dream World Chronicles, #2

Alex should be enjoying her new life as a nightmare hunter in training. But when she, Zoey, and Kacper join the Circle-an exclusive dream world society-she finds herself facing numerous challenges. The pressures of starting a new academy, learning the magic of her heritage, and dealing with her peers are hard enough, but things get even more complicated when a new breed of nearly indestructible nightmares appears, the mystery of her father deepens, and an old prophecy looms over her like a death sentence.
Will Alex be able to overcome the threats to her family-or will the hybrid nightmares and the one controlling them conquer her first?