Lo que la marea esconde

Aboard a schooner sailing the Santander bay at dusk, a select group of guests enjoys an exclusive party. But the celebration comes to an abrupt end when the host, one of the city's most powerful women, is found dead inside a cabin that is locked from the inside. The strange wound on her body and the inexplicable method of the crime baffle the authorities. Every guest had a reason to want her dead, yet no one could have entered or exited the sealed room.

Lieutenant Valentina Redondo is tasked with solving this seemingly impossible crime. As she delves into the lives of the elite guests, each with their own secrets, she finds herself facing the most enigmatic case of her career. The elegant homage to classic locked-room mysteries forces Redondo to confront not only a clever killer but also an unexpected and painful blow to her own personal life, exploring what lies hidden beneath the calm surface of the tide.