Zak and Rory head to the Antarctic where they rescue the Emperor Penguins from a deadly foe. After a day of play and showing the penguins how to fly,the penguins ask Zak to tell them a story. Zak enthrals them with a rip roaring pirate adventure on The Spanish Main. Zak and Rory leave their friends and head North, where they are met by another friend (Rog the Leatherback Turtle), who warns them that the whalers are ahead. Rory however, comes up with a plan involving lots of creatures.Will his plan work? Will they save the whales? An illustrated book of action and adventure featuring two giant creatures of the sea.Book four in The Zak and Rory series