In a completely wordless story, illustrations show a nighttime visit by a bevy of robot-like aliens to Jack’s bedroom. Delighted by the miniature creatures, Jack attempts to capture one in a glass jar. Even Jack’s dog can see the distress this causes the robot and his companions, and he uses his canine initiative to free the prisoner. After the group departs in their spacecraft, Jack still has his dog to keep him company as they ponder their unexpected experience. Jack’s story is easy to follow visually from start to finish, with colorful illustrations lending a cozy, nonthreatening feeling to the extraterrestrial event. (Ages 3–6)