Sail across sand dunes and streams on a handmade boat in Book 3 of the Challenge Island series!

Finding themselves transported to a magical island once again, Daniel, Joy, and Kimani emerge from a mysterious cave to see blue waters—they're by the beach! And in the near distance, across large sand dunes and up a hill, stands a familiar tall tower. There, the pirate Captain Wei awaits with all the answers to their questions... if they ever reach the tower in time.

Using items stashed around the cave, the friends must build themselves a blowcart and use wind power to sail across the bumpy beach. But how do they make a cart fast and sturdy enough to carry the three of them? See what surprises are in store for the three friends in this new Challenge Island adventure!

Included at the back of the book are cool facts about real sea pirates and ships, plus fun STEAM activities you can do at home, like how to build your own blowcart and make pirate treasure slime.

From the world's #1 STEAM (Science, Technology, Engineering, Arts, Math) program and education enrichment program, Challenge Island® presents an exciting new adventure for smart, curious kids. This is Book 3 in the Challenge Island series.