Estimated Ship Date: June 16, 2025

A tiny talking mouse sets off on a giant adventure to rescue his friend in this fun, heartwarming illustrated adventure, perfect for fans of Stuart Little and The Mouse and the Motorcycle.

Talking mouse Isaiah is free from the experiments that left him with blue fur and a big voice, and living a picture-perfect life with his human friend, Hailey. But the evil scientists—and their evil talking cats—are hot on Isaiah’s trail. When they mouse-nap his friend Mikayla, it's up to Isaiah and Hailey to rescue her.

Their search takes them on a cross-country adventure, where they face foes and make unexpected friends. If they can find Mikayla, they might even find a way to free Isaiah's siblings and create a happy ending for all of the lab mice.

This endearing and whimsical tail tale from bestselling author James Patterson is a celebration of bravery and determination in all shapes and sizes.