It’s been a tough year for Sasha―he’s been bullied at his middle school and his anxiety, which he calls the Gray, is growing. Sasha’s dad tells him to “toughen up”―and he does, but with unfortunate, hurtful results. His parents and therapist agree that a summer in the country with his aunt might be the best medicine, but it’s the last place he wants to be. He'll be away from his best friend, video games, and stuck in the house that reminds him of his beloved uncle who died two years earlier.

His aunt is supportive, and there are lots of places to explore, and even some potential new friends. When Sasha is introduced at a local ranch to a horse coincidentally--incredibly--nicknamed the Gray, he feels he's found a kindred spirit.

But his own Gray is ever-present. When one of his new friends disappears, Sasha discovers that the country is wilder and more mysterious than he imagined. He tries to muster enough courage to help in the search . . . but will the Gray hold him back?