"The King of the Golden River" is a short story written as a fairy tale. It tells the story of a very old and strange man who visited three brothers during a thunderstorm. Unfortunately, two of them mistreated the old man who was, in fact, the “South-West Wind Esquire”. To take revenge, he turned their fertile valley into red sand. The engaging narrative, full of interactivity and sound effects that give life to the story, invites the young public to reflect on the SDG #6 (water and sanitation). “The King of Golden River” app book playfully teaches how biology is essential to guarantee the access to health water around the world. Distinguished scientists from Novozymes Latin America came up with an easy step-by-step activity to guide you into the forest preservation journey. In addition, SESI PR school teachers (from Paraná, Brazil) have created exercises to incentivize reflection and social engagement. Download now the app book to experience this fascinating reading, discover current sustainable challenges, make a scientific experiment and be part of the world transformation! * 32 youth literary content screens with interactivities and more 68 illustrated screens * * 14 current sustainability information content screens * * Educational activities created by experienced teachers * * Scientific experiment proposed by experienced scientists*