"Stuck repeating everyday? Bored out of your mind? With only your friends along for the ride? Why, it's just like school! Of course, the Infinite Loops are a lot more fun then Beacon Academy, as Ruby Rose is about to find out. Part of the Infinite Loops project.

The fated journey through the Underground is at a close. But with the breaking of the Barrier, comes a new story. Delve into the rabbit hole that was the man named Gaster, through his notebook and into his mind. See from his eyes how the monster kingdom achieved its golden age, and then came crashing down like a house of cards. (Hope Project: Book Two.)