Favorite friends return for further adventures. Froggy becomes a big brother in the latest addition to the Froggy series, Froggy's Baby Sister by Jonathan London, illus. by Frank Remkiewicz. ""Frrooggyy!"" calls his father. ""Come see the baby!"" Froggy can't wait until Pollywogilina grows a little bigger, so he can teach her how to catch flies and jump off a swing.