Though few people in the “White Hart” will concede that any of Harry Purvis’s stories are actually true, everyone agrees that some are much more probable than others. And on any scale of probability; the affair of the Reluctant Orchid must rate very low indeed.

I don’t remember what ingenious gambit Harry used to launch this narrative: maybe some orchid fancier brought his latest monstrosity into the bar, and that set him off. No matter I do remember the story, and after all that’s what counts.

The adventures did not, this time, concern any of Harry’s numerous relatives, and he avoided explaining just how he managed to know so many of the sordid details. The hero—if you can call him that—of this hothouse epic was an inoffensive little clerk named Hercules Keating. And if you think that is the most unlikely part of the story, just stick around a while.

Hercules is not the sort of name you can carry off lightly at the best of times, and when you are four foot nine and look as if you’d have to take a physical-culture course before you can even become a ninety-seven-pound weakling, it is a positive embarrassment. Perhaps it helped to explain why Hercules had very little social life, and all his real friends grew in pots in a humid conservatory at the bottom of his garden. His needs were simple and he spent very little money on himself; consequently his collection of orchids and cacti was really rather remarkable. Indeed, he had a wide reputation among the fraternity of cactophiles, and often received from remote corners of the globe parcels smelling of mould and tropical jungles.

Hercules had only one living relative, and it would have been hard to find a greater contrast than Aunt Henrietta. She was a massive six-footer, usually wore a rather loud line in Harris tweeds, drove a Jaguar with reckless skill, and chainsmoked cigars.