From: Elementary ep. 5.17
Character name: Lady Frances (Carfax)
Reference: “The Disappearance of Lady Frances Carfax” is one of the most underrated, underplayed mysteries of the whole canon, and on of my personal favorites. It involves a kidnapped lady and has one of the most chilling “gotcha” moments at the end, of any of the canon stories.
Though there are twists and turns in this ep, the Lady Frances is not a woman, but a Carfax Desperado guitar, described as the “Stradivarius of guitars.” Which of course is another reference to Sherlock Holmes’ musical instrument of choice.