Ever since they were little hatchlings, Turtle and Tortoise decided that they'd forever be separated due to their different shells.

As years and years go by, the two reptiles stay on opposites side of the pen and embark on their own adventures, while holding an everlasting grudge. Until one day, Turtle and Tortoise get into a bit of pickle and need each other's help!

This hilarious and heartwarming picture book from Merry Un-Christmas author Mike Reiss and The Most Magnificent Thing creator Ashley Spires is perfect for fans of unlikely pairs such as Frog and Toad Are Friends by Arnold Lobel, Duck and Bear from Jory John's Goodnight Already!, and Boy + Bot by Ame Dyckman.

Turtle has a smooth shell.

Tortoise has a rough shell.

Goodness gracious! How can they possibly be friends?!