A tiny talking mouse sets off a giant adventure to save his friend in this fun, heartwarming illustrated adventure.

The beloved talking blue mouse is back in the sequel to the acclaimed New York Times bestseller

Free from the lab at last, talking mouse Isaiah lives a picture-perfect life with his human friend, Hailey. But the evil scientists - and their evil cats - are hot on his tail. 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, facing foes and making unexpected friends. If they find Mikayla, they might even manage to free Isaiah's siblings and create a happy ending for all of the lab mice.

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