I would mention the area's name, but I can't. All I can say is that this map would lead the two of us on an expedition into the heart of the unknown, hoping to find the last river for ourselves. What we discovered deep within the rainforest was enough to make me remove or change the place names in this journal - just like the map maker. Soon, you will know and understand....' Join the Unknown Adventurer again on this thrilling adventure into the Amazon, which begins with a map discovered in the Royal Geographical Society showing a river that has been mysteriously rubbed out. It leads the Unknown Adventurer and his companion Bibi into a search for this 'last river' that will change their understanding of nature forever. The gripping story features encounters with caiman and anacondas, incredible flora and fauna, survival tips and much, much more. The first title in a new series of spin-off adventures from The Lost Book of Adventure. 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.'