Deep in the caves under Coral Cove, Gabriel and Platy find the skeleton of a dodo and a secret message from Gabriel's great-grandfather. His old Journal starts to glow. It wants to show them something.

So begins an adventure across five continents. Gabriel and Platy learn teamwork from sea otters in Alaska, ride bison-drawn sledges across the ice, and catch the Trans-Siberian Railway. They cross the Gobi Desert, train with a warrior panda called Sensei Bao, and help the dragons of Bhutan find their fire again. They meet a wise white rhino, ride a giant turtle to the land of the dodo, and visit Platy's family in Tasmania.

But Professor Zuff is close behind, in his orange coat and his Storm Engine. He wants the power of nature all for himself.

Can a boy and a platypus bring the dodo back before Zuff stops them?

Gabriel made up this story when he was ten and eleven, and his mum wrote it down. It is his longest adventure yet.