The Search for a Daughter Lady Coulton gave up the baby that would have ruined her marriage, born when Lord Coulton was abroad. Now that her husband is dying, she asks Kate to find Sophia.

A Haunted Library It is forty years since the ghost of a dead librarian haunted the old library, yet the stories have begun again. Kate does not believe in ghosts but obligingly takes part in a ceremony to expel the restless spirit. Shockingly, there is a body in the basement, strangled, and covered in dusty volumes from a fallen bookcase. It is Dr. Potter, a mathematician.

A Killer on the Loose Dr. Potter’s body is taken away. The police find a sick man sheltering in the basement. He is an Italian, Umberto, an organ grinder and owner of a lively Capuchin monkey. Umberto becomes the prime suspect and will be charged with murder. Kate goes with Umberto to the infirmary. But he is too weak to be a suspect. And now Kate must set out to find the real culprit...