Between Worlds (The Wall Series #1)
12 parts Complete (Completed, Editing)
There is something off about this wall.
It isn't just the place Amy's mother met with an accident. It's a place where an abnormally strange feeling grows. Not because of what happened at the wall, but because of what happened after. First, the accident, then the disappearance of her father, then the unanswered calls and the secrets.
Despite hoping for a break from the tortures of high school, Amy is desperately drawn to the wall at the end of the alley. When she discovers the existence of a whole other world beneath its secrets, things go downhill. Amy, with the stakes higher than ever, has to join the enemy's side for the sake of her father, defy their leader, take up arms against them, and escape before she and her friends lose their lives--or worse.
(Thanks to @BrendaDaaeDestler for the beautiful cover!)