Mr. Fox notices that his pants pocket is empty, but there’s still something in it. What could it be? What animal is hiding in these letters L P H N? Paula, the apartment-house mouse, is trying to get in shape. She wants to do...

Mr. Fox notices that his pants pocket is empty, but there’s still something in it. What could it be? What animal is hiding in these letters L P H N? Paula, the apartment-house mouse, is trying to get in shape. She wants to do this by climbing stairs. She starts on the fourth floor, climbs up five stairs, down seven, up six, down three, and up four again. What floor is she on now?