Cordelia Gray

Cordelia Gray, a twenty-two-year-old private investigator, becomes the protagonist of the story when she inherits Pryde's Detective Agency following the suicide of her mentor, Bernie Pryde. Raised in foster homes and a convent after losing her mother at birth, Cordelia's life took a turn when her father, an itinerant Marxist poet, encouraged her to leave school to assist him in his work. After his passing abroad, Cordelia returned to find work as a temporary secretary for Bernie. Her calm and collected nature equips her to navigate tragedies and unexpected events with clear-headed determination. Throughout her initial solo investigation, she often reflects on Bernie's advice. Though many doubt that managing a PI agency is "'a suitable job for a woman,'" Cordelia consistently proves her doubters wrong by demonstrating remarkable intellect and tenacity. As she investigates the death of Mark Callender, Cordelia feels an increasing identification with him, especially as she inhabits his world, reading his books and living in his cottage. The sense of connection she develops with Mark becomes a significant element in her journey.

Sir Ronald Callender

Sir Ronald Callender emerges as a complex character—a leading scientist and conservationist, directing his private laboratory with a cool, detached demeanor. He hires Cordelia to uncover the reasons behind his estranged son Mark's suicide. Despite their distant relationship, Sir Ronald's concern about Mark's death surprises those who knew them. His preference for science and work over familial relationships becomes apparent. Ultimately, his own story concludes with a suspicious death, which is masked as a suicide, hinting at deeper secrets.

Elizabeth Leaming

Elizabeth Leaming serves as Sir Ronald’s secretary and housekeeper. She is characterized by her beauty and no-nonsense attitude. Initially disapproving of Cordelia’s involvement in the case, Elizabeth's relationship with Sir Ronald appears to extend beyond professional boundaries. Her reluctance towards Cordelia's investigation stems from her personal interest in Mark's life and death. Eventually, she collaborates with Cordelia to conceal the truth surrounding Sir Ronald’s demise.

Lunn

Lunn, the devoted lab assistant and chauffeur to Sir Ronald, views his employer with reverence, almost idolizing him. Taken in and raised by Sir Ronald from a young age, Lunn feels a profound sense of loyalty and gratitude. His willingness to protect Sir Ronald's interests is unwavering, though he harbors a clear dislike for both Elizabeth and Cordelia.

Miss Markland

Miss Markland resides with her brother and sister-in-law, Major and Mrs. Markland, who employed Mark as a gardener. Unlike her relatives, she shows genuine interest in Mark's death and Cordelia's investigation, granting Cordelia permission to stay in Mark's cottage. Over time, she reveals her own tragic past to Cordelia, adding depth to her character.

Mark Callender

Mark Callender, although deceased before the novel's events unfold, becomes the central figure of Cordelia’s investigation. Previously a promising history student at Cambridge, Mark abruptly left his studies to work as a gardener. Cordelia’s growing sense of kinship with him plays a crucial role in her understanding of his life and death. She immerses herself in his surroundings, finding traces of his orderly habits and connecting with the world he left behind, which guides her to uncover the truth about his fate.

Hugo and Sophie Tilling, Davie Stevens, and Isabelle de Lasterie

Hugo and Sophie Tilling, along with Davie Stevens and Isabelle de Lasterie, were close friends of Mark. While Sophie was once romantically involved with him, the group collectively attempts to discourage Cordelia’s investigation into Mark's death. Despite their cordial demeanor towards her, they harbor secrets about the night of Mark's passing. Cordelia eventually unveils their involvement and the role each played in the events leading...