Harry and Fergus have become local celebrities, and the murdered manโs widow approaches asking for help. She doesnโt believe his death was a suicide, and sheโs accumulated evidenceโโher late husbandโs body cam, and newspaper clippings announcing cryptic games. But Harry isnโt interested in any more cases. Kayleigh, she tells Fergus, was a one-off. Sheโs his tutor, not one half of a dynamic duo.