Mookie Finds a Friend is Book Five in the 'Mookie's Adventures on Earth' series. Mookie is a moon kid who finds a way to get to Earth. In this story, Mookie decides to go exploring on the other side of the river but he doesn't know how to get across it. Will Mookie give up or will he find a way to get across? All books in the series are about the adventures Mookie has on Earth. Mookie Finds a Friend...