A strange inheritance, a dilapidated house falling apart, mysterious noises coming from the basement, sudden disappearances... But where has Sara gone? Has she really disappeared? Or did she never exist? Stefano will have to uncover the truth by tackling obscure puzzles and solving complex riddles. Be prepared to investigate, but on tiptoe, without making any noise. Otherwise... Reading age: from 10 years. An absorbing story set in a strange house. The young protagonist will discover the importance of family ties and true friendship through suffering, loneliness, fear and endless gruelling trials that will nevertheless temper his character and teach him the true meaning of life's values.