An East Timorese boy goes with a crocodile for a trip back in time millions of years to see how the region was created and to learn about geology and extinct sea creatures. They go under water and to Australia, where they see dinosaurs. Then they return to Timor-Leste, where they watch the Timor island be 'born' as it appears from beneath the waves. The book is very informative, but told in the form of a story.