Monkey has a mysterious box, and he will absolutely not tell anyone what is inside. Cake is incredibly curious and has a million questions. Is there a tiny dinosaur hiding in there? Could it be a little kitty? These two best friends are very silly, but today they simply cannot agree on the secret contents of the box. You will join their hilarious guessing game as they argue, wonder, and let their imaginations run completely wild. Cake is determined to find out the truth, while Monkey claims to have all the answers. Jump into this funny early reader to see how these two buddies try to solve the ultimate puzzle. You will laugh along with their big emotions and silly ideas as you try to guess what is really hiding inside the mysterious box.