Ready, set, mango!

"Cousins Tee and Dee are the best of friends ... but they're also the worst of friends. For these two, everything is a competition. They fight over who's tallest, who's fastest, who's the best at every game. The story begins as the girls arrive on an island to visit their Auntie during summer vacation. It's mango season, and soon after they arrive, Auntie sends them outside to pick some mangoes so they can make smoothies. Their hunt for mangoes quickly turns into another competition -- each girl is determined to find the absolute perfect mango. But it's not long before they're distracted by another treasure -- beautiful shiny black pebbles that are all over the ground! And soon they're on to their next contest. But as they each scramble to collect the most precious pebbles, Dee is given the opportunity to do something nice for Tee, and she offers it with a full heart. Then, a call from their auntie makes them look up and they see something unexpected ... A goat producing black, shiny, pebble-shaped poop. The girls realize what they've been fighting over and burst into laughter at their own silliness. A hilarious story about rivalries that can arise between two family members in childhood, and the bonds of friendship that are always more important than the silly things we fight about"--