Tibet is a region located deep in the Himalayas in Asia. Its capital is Lhasa. Though it is nominally a part of China and administered by an envoy of the Qing Emperor, true power lies with the theocratic government of the lamas under the leadership of the Dalai Lama.
The Adventure of the Empty House[]
After his defeat of Professor Moriarty, Sherlock Holmes decided to fake his own death in order to get away from the men pursuing him, and so decided to flee Europe. During this period he spent two years in Tibet under the guise of a Norwegian explorer named Sigerson. This included some time living in Lhasa, where he spent several days with the head Lama himself.