A private investigator hired by Sophia to look into the suspected murder of Aristide Leonides. A former lover of Sophia, he interviews the hostile family, remains unconvinced by the police's initial accusations, and ultimately uncovers the truth through Josephine's notebook while chasing the killers.
Charles initially requests police approval from Taverner to conduct his private investigation.
Edith's actions and confession indirectly guide Charles toward the final resolution.
Charles distrusts the official narrative surrounding Laurence's guilt.
Charles treats the Nanny's death as a critical clue requiring immediate investigation.
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