The Three Taps - Ronald A. Knox

(4 User reviews)   1575
By Nicholas Ortiz Posted on Jan 27, 2026
In Category - Law & Society
Ronald A. Knox Ronald A. Knox
English
Picture this: a wealthy man is found dead in a country inn, a pistol by his side. The local police call it suicide and want to close the case. But his insurance company smells a rat—they won't pay out the massive policy unless it's proven to be murder. They call in Miles Bredon, an investigator who works for an agency nicknamed 'The Indescribable'. His job? To poke holes in the 'suicide' theory. The only clues are three gas taps in the room, all left in different positions. What do they mean? Was it a cleverly staged murder, or a tragic end with a bizarre final act? This isn't just a whodunit; it's a 'how-could-it-possibly-have-been-done-at-all?' Knox locks the door from the inside with his plot, and watching Bredon find the key is pure, old-fashioned detective fun.
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citizen faces it with the consciousness that he is backed both ways. Had the idea been thoroughly grasped in those remoter periods, no doubt but Alfred’s hostess would have been easily consoled for the damage done to her cakes and King John handsomely compensated for all that he lost in The Wash. Let us thank the soaring genius of the human mind which has thus found a means to canalize for us the waters of affliction; and let us always be scrupulous in paying up our premiums before the date indicated on the printed card, lest calamity should come upon us and find us unprepared. In a sense, though, insurance was but an empirical science until the Indescribable Company made its appearance. The man who is insured with the Indescribable walks the world in armour of proof; those contrary accidents and mortifications which are a source of spiritual profit to the saint are a source of material advantage to him. No east wind but flatters him with the prospect of a lucrative cold; no dropped banana skin but may suddenly hurl him into affluence. The chicken-farmer whose hen-houses are fitted with the company’s patent automatic egg-register can never make a failure of his business. The egg is no sooner laid than it falls gently through a slot which marks its passage on a kind of taximeter; and if the total of eggs at the end of the month is below the average the company pays—I had almost said, the company lays—an exact monetary equivalent for the shortage. The company which thus takes upon itself the office of a hen is equally ready when occasion arises to masquerade as a bee: if your hives are opened in the presence of its representative you can distend every empty cell with sweet nectar at the company’s expense. Doctors can guarantee themselves against an excess of panel patients, barristers against an absence of briefs. You can insure every step you take on this side of the grave, but no one of them on such handsome terms as the step which takes you into the grave; and it is confidently believed that if certain practical difficulties could be got over the Indescribable would somehow contrive to frank your passage into the world beyond. Wags have made merry at the company’s expense, alleging that a burglar can insure himself against a haul of sham jewels, and a clergyman against insufficient attendance at even-song. They tell stories of a client who murmured “Thank God!” as he fell down a lift-shaft, and a shipwrecked passenger who manifested the liveliest annoyance at the promptness of his rescuers when he was being paid for floating on a life-belt at the rate of ten pounds a minute. So thoroughly has the Indescribable reversed our scale of values here below. But of all the company’s enterprises none can rival in importance or in popularity the so-called Euthanasia policy. One of the giant brains that organized the undertaking observed with compassion the doubtful lot of human kind, the lot which makes the business man sweat and labour and agonize, uncertain whether he himself will reap the fruits of his industry or whether they will pass to an heir in whom, on the whole, he is less interested. It follows, of course, from the actuarial point of view, that he needs a policy which covers both possibilities, immature death or unexpected longevity, but the former on a more princely scale than the latter. If you take out a Euthanasia policy you will pay very heavy premiums; that goes without saying. But you pay them...

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Ronald Knox was a Catholic priest who helped invent the 'rules' for fair-play detective stories. In The Three Taps, he follows his own rules to the letter, and it's a delight.

The Story

Miles Bredon is sent by his quirky employer, 'The Indescribable', to a quiet village. A rich man named Mottram is dead in a locked room at the Three Taps inn. The police are satisfied it's suicide. The insurance company is not. If it's murder, they don't have to pay. If it's suicide, they do. Bredon's entire investigation hinges on this financial twist. The room was locked from the inside, the window was shut, and a gun was found near the body. The only oddity? The three taps on the gas fireplace—for 'light', 'medium', and 'full'—were left in a strange, specific configuration. Bredon, with his wife Angela cheerfully helping (or hindering), has to figure out if those taps are a meaningless detail, a suicide note of sorts, or the glaring clue that unravels a perfect murder.

Why You Should Read It

This book is a brain-tickler in the best way. You're not just looking for a guilty person; you're trying to solve a physical puzzle. How did the killer get out of a locked room? Knox plays absolutely fair. All the clues are there for you to see, often hiding in plain sight in conversations about local gossip or the layout of the inn. Bredon is a charming guide—not a brooding genius, but a smart, dogged man who enjoys the chase. The relationship with his wife adds a warm, funny layer that keeps the story from feeling like a cold logic exercise.

Final Verdict

This is a must-read for fans of classic, puzzle-box mysteries from the Golden Age. If you love the clean, clever problems of Agatha Christie's Poirot or the locked-room mysteries of John Dickson Carr, you'll feel right at home. It's also perfect for anyone who enjoys stories where the 'how' is just as important as the 'who'. Just be prepared to look at gas taps in a whole new light afterwards.



🟢 Public Domain Content

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Nancy White
1 year ago

Having read this twice, the emotional weight of the story is balanced perfectly. I would gladly recommend this title.

Dorothy Moore
8 months ago

Honestly, the emotional weight of the story is balanced perfectly. I would gladly recommend this title.

Joshua King
6 months ago

Citation worthy content.

Kimberly Walker
4 weeks ago

Without a doubt, the character development leaves a lasting impact. A true masterpiece.

4.5
4.5 out of 5 (4 User reviews )

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