The beginning of a story arch set just after Holmes's retirement.
It has been three years since his retirement. Watson comes to visit every six months or so. Every time he visits, Holmes greets him at the station, smiling. They do not talk much about their intimacy any longer. They don't need to. And every time, in bed on Sunday night, Holmes asks if Watson will stay with him.

Every time, Watson says no.

Today, Holmes received a telegram. Soon, Watson writes, he comes to stay.

And any moment now, he will come in the door…

Holmes has waited since 1902. He can wait a little longer.

Any moment now.

Now.