ENTER THE WORLD OF HOLLOW
Years ago, Katy’s best friend disappeared. But now, he’s back.
Only something is different about him this time. The bubbly, messy-haired chatterbox she once knew is now quiet, reserved, and jumpy. With his fearful behavior, Katy can’t help but suspect something more sinister is occurring.
Thrown into the chaos of his life, Katy learns that the world she lives in is much darker than she originally believed.