On the Reef

Andrew, Judy, and Thudd are out of the whale, but not out of trouble, when the Water Bug gets caught on the Great Barrier Reef! This is the third in a four-book set that will take the kids on a tour of undersea phenomena--from the Great Barrier Reef to the Mariana Trench to the inside of a whale--as they try to find their way home.From the Trade Paperback edition.