A gentle nighttime adventure filled with wonder, mystery, and imagination from master storyteller Ezra Jack Keats. Roberto is excited about the paper mouse he made in school, until Amy asks, "Does it do anything?" Roberto isn't sure, so he leaves the mouse on his window sill and goes to bed. Before long his apartment building is quiet, but Roberto can't fall asleep. So he gets up to look out the window and sees Archie's cat being chased by a big, snarling dog! Roberto doesn't know what to do, but fate steps in and an unlikely hero comes to the cat's rescue. "The artist's skillful use of a combination of acrylic painting and collage has never been more effectively employed than in this quiet tale." -The Horn Book