Ten-year-old Henry has just gotten the job of his life€”assistant to Charles Darwin on a voyage of the HMS Beagle. He will help Darwin collect all the creatures that fly, scuttle, and leap on this expedition to faraway lands. Little does he know that it will be one of the greatest scientific expeditions of all time! As the trip gets under way, Henry records everything he sees and does in his diary, providing readers with a firsthand account of the famous adventure. Fictionally told but based on facts, Charles Darwin puts an innovative spin on the story and accomplishments of the most famous naturalist in history.