The wicked Crow Witch has a terrible plan in mind: tarmacking the lagoon of Venice, thus turning it into a town like all the others. Will the six Pet Pals be able to put a stop to her plan and to find Marco Polo’s Code first? Will they discover in time the legendary Parallel Palace of Magic? Only the secrets hidden in this place will be able to help our brave Pet Pals to save Venice from this evil plan.