When the walrus sees a spot in the snow and checks on its probable origin with the puffin, who knows all without ever checking, the argument, though stately, is on and it becomes more amusing as the walrus digs around it, always careful to report to the unshaken puffin, still insisting ""it is nothing"" -- until a red wagon is revealed. The pictures are by the author and they carry the humor of the words, an asset in an I Can Read Book.