Dr. Pren and the Secret of the Formula - Hardcover

by Máximo César Castellanos (Author)

Each day that passes without knowing everything about Dr. Pren, George is at a greater risk of losing his life. In the small town of Pascanwon, George returns to Dr. Pren's cabin. On this third visit, George discovers how Dr. Pren ends up putting his life in danger by facing his enemy, Adam Hopper, and fighting fierce creatures known as Jintels, all while discovering the great secret of the formula.