1826 Countess Lyubov Chernysheva loves music and poetry, and she also sincerely believes in the beautiful essence of people. Imitating Tatyana Larina, she writes a love letter to Prince Alexander Schwarzenberg, but the confession takes her chosen one by surprise. A difficult explanation, poorly chosen words - and that same night the young countess runs away from home. But trouble does not come alone: Alexander’s mother is found stabbed to death with a dagger with a Maltese cross belonging to the prince. Captain Shcheglov takes on the investigation of the crime, but will he be able to prove the prince’s innocence? “The Dagger with the Maltese Cross” is the third novel by Martha Tarot from the fascinating series “The Gallant Detective”, which is already beloved by readers, in which readers will find a new secret message from the Tarot cards.