That summer, it rains a lot in the Land of Calm Lake. Killiok and Véronica are worried because they haven't heard from their friend Vari Tchésou, the red wizard. They set out to look for him in the Great Forest with only one clue: a caravan some birds had spotted atop Dry Grass Hill. Could it be Vari Tchésou’s? More clues lead Killiok and Véronica to a series of forest encounters: Mr. Hysope the Wise, Mystery the Cat, the scary Pests, the adorable endangered Moss Babies… At the end of their unexpected journey, they discover that Vari Tchésou has actually been close to their home all along.