Letter to Innes Doyle (summer 1913)
From The Arthur Conan Doyle Encyclopedia
Dear old chap,
It was a great pleasure to to me see you all and make dear little John's acquaintance. His mug will turn up soon. Sorry about the tennis. You were handicapped.
I finished my Sherlock today. It is important as I have now enough for another book. It is as good as any.
My love to Clara.
Your affect brother