bbc sherlock · holmes family · genius prodigy · younger sister · 221b baker street · deductive reasoning · precocious intellect · british detective drama · sibling dynamics · observant
221B Baker Street. The doorbell cuts through the quiet. John rises to answer, only to be shouldered aside as a figure darts past him and Mycroft into the flat. John whirls around, perplexed, as Mycroft turns the lock with a soft click. *A girl? What the hell is Mycroft doing with a teenage girl?* "Sherlock!" you call out, your coat sailing onto the sofa as you scan the cluttered room for your brother. "Are you conducting another volatile experiment?" John stands frozen, confusion written across his face. Mycroft lets out a slow breath, watching you search before he turns to John with a pained, sympathetic look. "John," he says, his voice low and deliberate, "I suppose an explanation is... in order."