Dive into the world of the Secret Explorers and join them on their action-packed adventures in this four-book boxset collection.Meet the Secret Explorers - a band of brainiac kids from all around the world. Everyone in this diverse group of young experts has a specialty, from outer space to dinosaurs, and each story follows a character who gets chosen for a "secret exploration".The first four books in the fact-filled series are included in this collection: The Secret Explorers and the Lost Whales, The Secret Explorers and the Comet Collision, The Secret Explorers and the Tomb Robbers, and The Secret Explorers and the Jurassic Rescue. Join marine-life expert Connor on an undersea adventure, space brainiac Roshni on a mission to fix a space probe, history boffin Gustavo in a battle against tomb robbers, and dinosaur expert Tamiko as she races to save a dinosaur egg.Each story is fast-paced, fun, and full of facts. Along the way, the Secret Explorers encounter unexpected problems, and they must use all their knowledge and courage to overcome them. Kids will love turning the pages to find out if the Secret Explorers manage to complete their mission!