La Cattedrale della paura

When Irene's family moves to Normandy in 1871, a strange warning about her mother's safety pulls her into a thrilling adventure. She enlists the help of her friends, the young Arsène Lupin and Sherlock Holmes, to uncover a secret crypt beneath war-torn Paris. Together, these budding detectives must race against time to find an ancient relic before it falls into the wrong hands.