Lo que la marea esconde

The president of the Real Club de Tenis de Santander, one of the most powerful women in the city, has been found dead in the cabin of a beautiful schooner that, with a few select guests, was sailing the waters of the bay at dusk. The crime is reminiscent of the novels of the "locked room" at the beginning of the last century: the compartment was closed on the inside, both the strange wound presented by the businesswoman's body and the mysterious method used to carry out the murder are inexplicable and all the Guests at the party seem to have reasons to have ended their lives. No one can have left or entered the ship to commit the crime or escape. Who Killed Judith Pombo? How? And because?