Based on the fan-favorite game Adopt Me! comes this action-packed original middle grade novel featuring charming illustrations throughout. Now available in a lower-priced hardcover edition! Sophia Lee and her best friend, Kat, live on Adoption Island, a paradise filled with pets, customizable homes, and endless adventures. But their world is turned upside down when they discover that the entire island's beloved pets are starting to go missing. As panic spreads across the island, Sophia, Kat, Pinky, Jumper, Finn, and a legendary Queen Bee named Matilda must embark on a quest to uncover the truth. Their journey leads them to encounter everything from a self-proclaimed king to a talking book with cryptic clues and the island's most popular party host. When the friends stumble upon a hidden camp where the missing pets are held captive, the story takes a shocking twist that will ultimately test Sophia and Kat's friendship. Sophia must stand up for what's right, even if it means risking everything. Will Sophia and Kat save the pets and restore peace to Adoption Island? Perfect for fans of action-packed adventures and the fan-favorite online game, this book includes illustrations throughout!