*The first book in The Experiments series* What happens when things get a little stranger before Pennywise comes? A grieving Bill Denbrough is out searching for his missing brother one day with his life-long friends and twin when they discover something that'll make them question their concept of reality altogether. Thrusted into a world of doppelgangers and telekinetic girls, the Losers Club become stranded in a world that both frightens and fascinates them. With no way home, they are forced to make unlikely allies and learn to survive for as long as they can. But something's coming for them, and it won't let all of them leave alive. Will they be able to survive in this strange new world? Will they be able to find Bill's brother? Will they even be able to make it home?