[s2e2] The Hounds Of Baskerville «PROVEN ◉»

Sherlock realizes the drug isn't in the sugar or the water—it’s in the of Dewer's Hollow.

The story begins with , a man haunted by a twenty-year-old memory. As a child, he watched his father torn apart in "Dewer’s Hollow" by a monstrous, red-eyed hound. The trauma has festered into an obsession, drawing Sherlock Holmes and John Watson away from the boredom of London and into the eerie, mist-laden landscape of Dartmoor. [S2E2] The Hounds of Baskerville

The story closes with a chilling realization. Sherlock’s "Mind Palace" vision of in a prison cell was actually a lingering effect of the gas—a shadow of his greatest fear. As Henry finally finds peace, the episode ends with a teaser: Mycroft releasing Jim Moriarty from a holding cell, where the villain has written "SHERLOCK" all over the walls. O.U.N.D. project? Sherlock realizes the drug isn't in the sugar