Mr. Baker's eighth grade class thought they were in for a normal field trip to Carlsbad Caverns in New Mexico. But when an earthquake hits, their field trip takes a terrifying turn. The students are plunged into an underground lake and their teacher goes missing. They have no choice but to try and make their way back above ground, even though no one can agree on the best course of action. The darkness brings out everyone's true self. Supplies dwindle and tensions mount. Pretty and popular Silvia does everything she can to hide her panic attacks, even as she tries to step up and be a leader. But the longer she's underground, the more frequent and debilitating they become. Meanwhile, Eric has always been a social no one, preferring to sit at the back of the class and spend evenings alone. Now, he finds himself separated from his class, totally by himself underground. That is, until he meets an unexpected stranger. Told from three different points of view, this fast-paced adventure novel explores how group dynamics change under dire circumstances. Do the students of Mr. Baker's class really know each other at all? Or do they just think they do? It turns out, it's hard to hide in the dark.