**WINNER OF THE CHILDREN'S TRAVEL BOOK OF THE YEAR 2026** –Edward Stanford Travel Writing Award 'A clarion call to the child explorer [...] a spectacular immersion in the life of the wild.' – The Guardian.     ‘Breathtakingly beautiful... every young adventurer should read this book.' – Kate Winslet    ‘Packed FULL of adventures’ – Bear Grylls    Join the Unknown Adventurer on his latest adventure, this time entering dangerous waters after being washed up on a deserted island.      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.    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 . . .    Presented like an artist’s journal, with handwritten sections, smudged notes and stuck-in pages and illustrated in breathtaking detail, this is a thrilling tale of survival, friendship and underwater discovery.     Take a deep breath. You are about to enter dangerous waters.    Also from the Unknown Adventurer: The Lost Book of Adventure and Journey to the Last River.