Nightmares! The Sleepwalker Tonic

Jason Segel writes across genres, from the imaginative world of Otherearth to the practical advice in Everything You Need to Know about NIGHTMARES! and How to Defeat Them. His books offer readers both speculative fiction and helpful insights.

Kirsten Miller is known for her fantasy and young adult novels like Change, Otherearth, and the Kiki Strike series. She also wrote the popular children's guide, Everything You Need to Know about NIGHTMARES! and How to Defeat Them.