While Holmes is away

Careful Sherlockians, on returning in adulthood to the four novels and 56 short stories that they devoured uncritically in their teens, tend to notice an endearing vagueness on the part of Sir Arthur Conan Doyle when it comes to details. There is Watson’s old war wound, for instance, which journeys absent mindedly between shoulder and leg. And there is Doyle’s inability to remember dates or even his own characters’ names. In ‘The Creeping Man’ the client, Trevor Bennett, is met by his fiancée with a gushing, ‘Oh, Jack, I have been so dreadfully frightened.’(Watson himself has form here. In ‘The Man With the Twisted Lip’ his wife calls him James and he does not find it odd, even though his name is John.)

Part of the reason is that Doyle was simply less bothered about Holmes and Watson than we are. He considered the duo a trivial distraction from the real business of penning historical novels, and even went to the trouble of killing Holmes before financial circumstances compelled him to resurrect him.