A 16-year-old high school student, Charlotte Holmes attends the Sherringford Academy in Connecticut. She has an angular build, dark hair, and colorless eyes. Although she isn’t conventionally pretty, she draws attention because of her charismatic intensity. She’s British by birth, but her family has sent her to a US prep school as a disciplinary measure. Charlotte is a descendant of the famous detective Sherlock Holmes and shares his analytical powers, as do all her family members. Trained from a very early age to be a keen observer, Charlotte began solving crimes and helping Scotland Yard during her preteen years.

She sometimes has difficulty dealing with her hyperactive mind and resorts to drugs, having developed an addiction to various substances at the age of 12. When August Moriarty is hired as her tutor, Charlotte develops an emotional attachment to him. When he doesn’t return her affection, she implicates him in a drug deal, ruining his career and inviting the wrath of the entire Moriarty clan. The consequences of Charlotte’s reckless behavior have taught her to distrust her emotions. As a result, she’s wary when she first meets James. His kindness and obvious infatuation with her eventually draw Charlotte into trusting him.