On their way to a camping trip, Jack and Sam stumble on an old cave, and find themselves travelling through time to help Jason and the Argonauts and King Phineus to escape from the food-stealing harpies. This exciting graphic novel was written by Linda Chapman and illustrated by Dylan Coburn.

On their way to a camping trip, Jack and Sam stumble on an old cave, and find themselves travelling through time to help Jason and the Argonauts and King Phineus to escape from the food-stealing harpies. This exciting graphic novel was written by Linda Chapman and illustrated by Dylan Coburn.