El diario perdido

After their misadventure in flight debut, Puffy and Brunhilda are back to who they were before. But they know that normality will not last long and that, at night, they will change places and transform back into each other and the other into one. But why is this happening? To solve the mystery, they will have to reach into the past and discover more information about their great-great-great-great-great-grandmother Romilda, from whom Brunhilda inherited the unpredictable "mountaineering gene", the cause of this annoying glitch. All of Romilda's secrets are found in the pages of her lost diary, secretly buried in her hut and protected by a fearsome monster that feeds on the fears of Arthur, the boy who lives next door. The only way to defeat the monster is to help Arthur face his fears. Thanks to Puffy and Brunilda, Arthur will be able to overcome his greatest fears and they will finally be able to read his diary and his precious secrets.