Previously on Sherlock: His Last Vow.
There are no ghosts in this world. Save for the ones we make for ourselves.
This is the story of five minutes in the life of Sherlock Holmes. Five minutes in the real world, but a lifetime in another — in Sherlock’s Mind Palace, to be precise. In the time it takes for the plane to turn around and come back down to land in His Last Vow, as John speaks the foreboding words, “There’s an East Wind coming,” Sherlock has already gone deep into himself, into the recesses of his mind, to solve a mystery that has kept us on the edges of our seats for two years.
How is he alive?