"A playful and educational time-travel adventure."-
Kirkus Reviews
Do you believe time travel is possible? Look at the potting shed that's splattered with "Do Not Enter" graffiti and guarded by the golden-horned dragon. If you figure out how to unlock its door and then dial the antique phone inside, you'll accompany Sky and Hoppy to the Ice Age-50,000 years ago. There, a courageous battle for freedom is about to begin! BEWARE: If you don't keep track of time, you won't return to the present! Life is full of battles. Often, actually more often than not, something wonderful emerges from the battle-something that would have never otherwise happened.