Almost one hundred years ago, William Beebe and Otis Barton crawled into a tiny submarine to explore the depths of the sea. How did they come to invent the Bathysphere? And what did they find there, far below the ocean's surface? A book about dreaming, daring, thinking, and doing. For researchers ages 6 and up. | Mission To The Bottom Of The Sea by Jan Leyssens, Picture Books | Indigo Chapters