Coby Collins and the Hex Bolt of Doom

Coby starts fourth grade with the goal of staying out of trouble, but things take an unexpected turn when he and his friend Antoine venture into the underground tunnels of Marley Elementary and come across a mysterious hex bolt. As they uncover more about the Fleshbots, they realize the situation is more dire than they initially thought. This fast-paced story is a compelling continuation that keeps readers eager to find out what happens next.