    Having been conferred a degree of Doctor of Medicine, Watson went on through all the required courses prescribed for surgeons in the Army. Then he became an assistant surgeon. Soon the Afghan war broke out. The army which he served was commanded to fight. He was struck on the shoulder by a bullet at a battle. Unfortunately, he got a horrible enteric fever when receiving treatment in hospital. He became weak and thin when he finally recovered. In attempting to improve his extremely ruined health, the government permitted him to spend nine months at home.
    Returning to London, he decided to rent a cheap apartment to live in based upon his limited income. One day, he met an acquaintance in the street. The man referred him to a Mr. Holmes, who was also looking for somebody to share an apartment in order to pay less rent. They were happy to meet and determined to share a 2-bedroom apartment with big and bright windows at 221 Baker Street.
