El signo de los Diez

England, 1882: a world where theaters have taken a wicked shape, the mad and blind can discover the truth, and dreams can kill. At the Clarendon residence for mental patients, in Portsmouth, where Mr. X is hospitalized, his old friend, the Reverend Charles Dogdson, comes to visit. No one else there knows that the newcomer is Lewis Carroll, creator of Alice in Wonderland. He has gone in hopes of ending the torment of the strange prophetic nightmares that afflict him every night, starring the characters in his stories, in which a mysterious and twisted "Mad Hatter" announces to him that he is going to die. Mr. X, in the care of Anne, his personal nurse and narrator of the story, will try to help him, and to achieve his cure he will ask for the collaboration of a famous alienist doctor, Owen Corridge, a stratagem to which the director of the clinic gives his approval. Mr Ponsonby. This makes the basement of the sanatorium available to him so that the necessary stage for a "mental theater" can be set up: a very special theatrical performance in which the patient is confronted with his fears and can overcome them. However, the deaths announced in Dodgson's nightmares begin to come true in a creepy way, revealing his possible link with a macabre sect called "the Ten" that, long ago and through a perverse game, claimed the lives of Portsmouth beggars. , and to which Mr. X inflicted an unforgettable defeat. Panic will seize everyone when a new nightmare predicts the name of the next victim. Will Mr. X and his allies succeed in defending her from the attack of the mysterious assassin behind Dodgson's nightmares?