A case of stolen letters leads Sherlock Holmes into a long conflict with Charles Augustus Magnussen, the Napoleon of blackmail, and the one man he truly hates. But how do you tackle a foe who knows the personal weakness of every person of importance in the Western world?
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Episode Details: Sherlock Season 3 Episode 3
| Title | His Last Vow |
| Episode | 3 |
| Season | 3 |
| Release | January 12, 2014 |
| Overview | A case of stolen letters leads Sherlock Holmes into a long conflict with Charles Augustus Magnussen, the Napoleon of blackmail, and the one man he truly hates. But how do you tackle a foe who knows the personal weakness of every person of importance in the Western world? |
| Rating | 8.221 |
| Vote Count | 138 |
