All it takes is one: one coral gamete to start a colony, one person to make a difference, one idea to change the world. The ongoing efforts to save and rebuild the world's coral reefs—with hammer and glue, and grafts of newly grown coral—are the living legacy of Ken Nedimyer, founder of the Coral Restoration Foundation. Kate Messner and Matthew Forsythe tell the true story of the coral restoration pioneer in this brilliant tribute to the wonders of nature and the power of human hope.

Kate Messner is the award-winning author of Over and Under the Snow, Up in the Garden and Down in the Dirt, Over and Under the Pond, Tree of Wonder, and How to Read a Story, as well as more than a dozen other books for young readers. Kate lives on Lake Champlain in New York.Matthew Forsythe is an award-winning artist and illustrator. He has worked with the New York Times, the Wall Street Journal, Cartoon Network, DreamWorks, and Nickelodeon. He lives in Port Colborne, Ontario.