The Hidden Battle for London Town
The current head of MI6, secretly known as M. He is also the seneschal of Empress Britannia. He established and owned and operates the Diogenes Club – a club designed solely for Scions. He is a hugely intelligent man, but a deeply arrogant one… and very, very fat.
He has one younger brother (though only by a few minutes), the famous detective Sherlock Holmes. Mycroft was reportedly quite affected by his little brother’s death.
Original text: The Adventure of the Greek Interpreter by Sir Arthur Conan Doyle.