* AlternateCharacterInterpretation: The revelation in ''Key'' that [[spoiler: Charles fathered Gwendolyn and Charlotte, not just Victor,]] suggests that Rose may not have been as fragile or innocent as she'd seemed to be in the earlier games. [[spoiler: Indeed, if she was sleeping with Charles while still living as Mr. Somersett's wife, it's conceivable that she'd attempted to help Emma escape out of ''jealousy'', not fear for Emma's own welfare.]] And Charles probably knew it, hence his mistreatment of Rose while she was his ReplacementGoldfish for Emma.
* SugarWiki/FunnyMoments: In ''13th Skull'', the bartender at the local dive asks you to unclog the toilet. When you succeed, you are heralded by the sounds of people cheering and applauding.
* NauseaFuel: The orders Charles' mother gives him in ''Escape from Ravenhearst''. See also NoYay below.
* NoYay: Charles and the Master Detective's interactions in ''Escape from Ravenhearst''. First, he asks her to [[spoiler: "give birth to him"]]. She does. Then he pulls off [[spoiler: an AccidentalMarriage trick]] on her. Gah.