Benedict Cumberbatch Benedict Cumberbatch

[Warning: The following contains spoilers from the Sherlock finale, "His Last Vow." Don't add this to your mind palace until you've seen the episode. You've been warned.]

On the season finale of Sherlock on Sunday, the intrepid consulting detective was thrown for a loop not just once, but three times. Here's a rundown:

Sherlock: An introduction to villain Charles Augustus Magnussen

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