Nothing to do, a beautiful summer day, and the combustible combination of Jerry and younger brother Davy Stokes, tomboy Clem Robie and leader extraordinary Marcus Cole -- and that wonderful lady from "" Street"" does it again! It all begins with the , an old rwboat found in Clam's garage and capable of taking the gang to Africa, China and unexplored islands. Inspired by `Marcus' idea, they head for the muddy banks of Catfish Creek, and a remarkable voyage in underway. Unfortunately, reality interferes. Deep in their fantasy, the children are swept farther and farther out and then caught up in the current of the stream. With grownups gesticulating from the bridge and both paddles gone, Captain Marcus is reduced to tears. Without a leader, they all fend for themselves. That unexplored island turns up just in time, around the bend of Catfish Creek, and with the help of overhanging branches, a few adults and Major, the dog, all are saved -- all but Clem. With no thought for his own safety, Captain Marcus redeems himself with Clem safely in tow. More than exciting, perfectly plausible adventure, the experience teaches each child something he never knew, about himself or his friends, something every child-reader will understand.