This was meant to be a journal of my quest to find the sea nomads, but a few days ago something happened that turned my world upside down . . . You are about to read an adventure story so real you'll be able to taste the salt water on your lips. I don't know how it will end but I'll keep writing this journal as long as I'm able. One day I hope I can give it to you.

After he's flung from a ferry after seeing something so dangerous he would be killed for his silence, the Unknown Adventurer washes up on a deserted island. Completely alone, he puts his survival skills to the test and begins the journal he promised his younger siblings he would write. But after a while he notices that it is not all what it seems on the island and something mysterious lies across the lagoon. Something he must investigate.

Take a deep breath. You are about to enter dangerous waters.

This is a thrilling tale of survival, friendship and underwater discovery that transports you to remote seas that whisper of ancient legends you can only begin to imagine.

Presented like an artist's journal, with handwritten sections, smudged notes and stuck-in pages and illustrated in breathtaking detail, this is a story that will spark a sense of adventure in every reader. A new exhilarating book from the Unknown Adventurer, author of The Lost Book of Adventure and Journey to the Last River.

Praise for The Lost Book of Adventure: Bear Grylls -- 'Packed FULL of adventures' The Guardian -- 'A clarion call to the child explorer [...] a spectacular immersion in the life of the wild.' Daily Express -- 'Exquisitely illustrated [...] children will treasure it for years to come.'

Praise for Journey to the Last River: Financial Times -- 'An extraordinary, enticing fusion of fiction and natural history. The artwork alone [...] is stunning.' Kate Winslet -- 'Breathtakingly beautiful... every young adventurer should read this book.' The Oldie -- 'The second thrilling voyage for the Unknown Adventurer.'