Sibella Greene

Philo Vance

Vance is fascinated by Sibella's manipulative and enigmatic nature, analyzing her as a key figure in the case.

Ada Greene

Ada and Sibella are sisters, but their relationship is strained by jealousy and suspicion.

Doctor Von Blon

Von Blon attends to Sibella as her physician, but their interactions are marked by her coldness and his wariness.

Chester Greene

Chester and Sibella are siblings, but their relationship is competitive and fraught with mutual distrust.

Philo Vance

Vance is fascinated by Sibella's manipulative and enigmatic nature, analyzing her as a key figure in the case.

Chester Greene

Chester and Sibella are siblings, but their relationship is competitive and fraught with mutual distrust.

Philo Vance

Vance is fascinated by Sibella's manipulative and enigmatic nature, analyzing her as a key figure in the case.

Doctor Von Blon

Von Blon attends to Sibella as her physician, but their interactions are marked by her coldness and his wariness.

Ada Greene

Ada and Sibella are sisters, but their relationship is strained by jealousy and suspicion.

Ada Greene

Ada and Sibella are sisters, but their relationship is strained by jealousy and suspicion.

Chester Greene

Chester and Sibella are siblings, but their relationship is competitive and fraught with mutual distrust.

Doctor Von Blon

Von Blon attends to Sibella as her physician, but their interactions are marked by her coldness and his wariness.

Characters of the Book

Another daughter of the Greene family.

I: A Double Tragedy

Mentioned as a daughter of the Greene family, a few years under thirty.

IV: The Missing Revolver

Arrives at the end of the chapter, summoned for questioning by Vance.

V: Homicidal Possibilities

Sibella enters with bold confidence, displaying a cold, chiseled attractiveness and a flippant, cynical demeanor. She openly admits the Greene family is dysfunctional and that any member could be a murderer, including herself. She confirms seeing Chester's revolver in his desk last week.

VI: An Accusation

Accuses Ada of stealing Chester's revolver and of recognizing her footsteps; displays venomous hostility.

VIII: The Second Tragedy

Sibella hears the shot and discovers Chester's body, then alerts Sproot. She is the only one who admits hearing the shot.

IX: The Three Bullets

Describes her actions after hearing the shot, displaying flippancy but underlying anxiety.

A Motor Ride

Displays nervous high spirits and flippancy after the funerals. She insists on diversion, drinks a highball, and makes a chilling remark about the bluff being a perfect spot for murder.

XV: The Murderer in the House

Interviewed about her whereabouts during Rex's murder; claims she was in her room bathing her dog and that Doctor Von Blon was with her. Expresses fear but refuses to leave the house.

XVIII: In the Locked Library

Spends an hour with Doctor Von Blon during his visit.

XXI: A Depleted Household

Reveals Von Blon visited her the previous night; announces she is leaving for Atlantic City; shows contempt for Ada.

XXIII: The Missing Fact

Revealed to have secretly married Arthur Von Blon a year ago, a fact that Vance considers crucial.

A Mysterious Trip

Reported to be in Atlantic City; phoned Sproot to have a trunk of clothes sent down, indicating a prolonged stay.

XXV: The Capture

Found injured in the car, slumped with a cut on her temple.

XXVI: The Astounding Truth

Mentioned as the object of Ada's jealousy due to her relationship with Von Blon, and as a target of suspicion through Ada's tricks.

Endnotes

Referenced in a note about Tobias Greene's will and the requirement to live on the estate.