Ashton Kirk is a young man of high social position and great wealth; he is a deep student and learned in the lore of ancient tablets and forgotten books. His keen mind delights in those mysteries which have proven too shadowy for the police. He finds a joy in the hunt; there is a thrill in matching his intelligence against the craft of the criminal. His interest in the mystery of the house of fear, Cramp's house, was awakened by Pendleton, who, as a guest of Cramp, communicated to Kirk, his friend, the strange sense of mystery and fear surrounding Cramp's house. In Cramp's household lives Grace, his sister, Miss Hohenlo, his aunt, and Kretz, his servant. Kirk learns through his agent in Mexico that Cramp's father was an expert engraver in Mexico years before, and his astute mind connects this fact with the number of Mexicans in the vicinity.