Hide and Seeker
Justin knows that something is wrong with his best friend. Zee went missing for a year. And when he came back, he was...different. Nobody knows what happened to him. At Zee's welcome-home party, Justin and the neighbourhood crew play hide-and-seek. But it goes wrong. Very wrong.
One by one, everyone who plays the game disappears, pulled into a world of nightmares come to life. Justin and his friends realize this horrible place is where Zee had been trapped. And all they can do now is hide from the Seeker.