When Santiago is thrust into the farm’s pigsty, Penelope is captivated by Santiago Talbert’s boast, “I plan to sail the Seven Seas.”
Together, these extraordinary pigs escape the farm and cross into the land of Liberty, a parallel world where an intelligent human or animal can get ahead.
They follow their dream to Boston harbor, where they try to convince sea captains that pigs can sail.
First, though, Santiago learns mapmaking, while Penelope works on the docks loading ships.
Eventually Penelope signs onto the Ice King’s crew as he cuts and packs ice to ship to the far-flung corners of the world.