We have riddles to solve, a world to save! vladimir tumanov, famous for his fantastic novels that make mathematics and geography popular, draws attention to the climate crisis, the most important and urgent problem of today's world, in his new book. the adventure continues in the second book of the "mysterious maps" series, which started with the novel getting lost in the map, which had hundreds of thousands of fans, and was also published in turkish for the first time. this time, the lower brothers are dragged into a major flood, embarking on a breathless journey with riddles and clues. the value of knowledge, research and solidarity is also emphasized in the novel, which reflects on the problems that will determine the future of the world, such as the melting of glaciers, the rise of the oceans and global warming. bottom brothers chris and francis find themselves in the middle of a major storm after an incredible summer adventure where they age fast each day. although they went to the city center to save their parents, it was already flooded everywhere. the children are trapped in the abandoned office building. moreover, with a new roll with mystery riddles! fortunately, mariana, who knows boats, joins them. drifting in the flood with various vehicles such as yachts, barrels, gondolas, the trio is in a hurry to solve the riddles in order to draw the waters that swallowed the whole world.... there is less than 5 stocks to be sold at the campaign price. the listed price is valid until october 16, 2026. This publication is ideal for readers seeking insightful and educational content. Prepared by experienced authors and printed with high-quality materials. Great for students, educators, and curious minds.