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mystery

Mystery is a fiction genre where the nature of an event, usually a murder or other crime, remains mysterious until the end of the story. Often within a closed circle of suspects, each suspect is usually provided with a credible motive and a reasonable opportunity for committing the crime. The central character is often a detective (such as Sherlock Holmes), who eventually solves the mystery by logical deduction from facts presented to the reader. Some mystery books are non-fiction. Mystery fiction can be detective stories in which the emphasis is on the puzzle or suspense element and its logical solution such as a whodunit. Mystery fiction can be contrasted with hardboiled detective stories, which focus on action and gritty realism.
Mystery fiction can involve a supernatural mystery in which the solution does not have to be logical and even in which there is no crime involved. This usage was common in the pulp magazines of the 1930s and 1940s, whose titles such as Dime Mystery, Thrilling Mystery and Spicy Mystery offered what were then described as complicated to solve and weird stories: supernatural horror in the vein of Grand Guignol. That contrasted with parallel titles of the same names which contained conventional hardboiled crime fiction. The first use of "mystery" in that sense was by Dime Mystery, which started out as an ordinary crime fiction magazine but switched to "weird menace" during the later part of 1933.

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  1. G

    Mystery industrial Valve type?

    Anyone recognise this industrial brass valve (see pics attached) ? I inherited about 50 of the things, and would hate to end up sending them for scrap. Im hoping they are worth a few bob! Male connector is tapered, from about 30mm down to approx 25 mm, and female connector is about 22mm...
  2. M

    Mystery cold radiator. Please help!

    Hi everyone. I moved into a new house last year and I have one cold radiator. It’s the furthest from the house, in an extended part of the dining room. When we moved in we needed to replace the boiler as it was on its last legs. But still it was cold. So I bought and fitted a new rad, in...
  3. S

    Gas fire mystery problem

    Hi all, I'm a member of the public with a persistent problem with a gas fire that's been looked at a couple of times and is still not right. I'm not looking to repair it myself but just want a bit of impartial input before I spend any more on it! Basically it's a new (less than one year old)...
  4. johnnybaloney

    How to top up Stelrad Ideal boiler? Mystery hose...

    Hello boiler junkies! Below is the beast I'm dealing with. The heating suddenly stopped so I went to investigate and discovered that the system was low on pressure. But how to top up? The previous boiler I had to take care of was attached to a small cylinder, you just needed to flick a couple...
  5. E

    Leak from CHS mystery outdoor pipe

    This is the side of my circa 30s house. You can see: A. CHS drain off valve B. Mystery pipe C. Mystery pipe terminating into concrete, causing D. Big puddle (not labelled as pretty apparent!) This leak happens when CHS is called, boiler pressure ultimately drops to near zero after 5-7 days. It...
  6. C

    Very high water bill mystery!

    Hi, hoping someone can help. Recently received a water bill that was more than double the expected amount with no obvious explanation for the extra usage. Done some checks for leaks inside and out as per the water company advice but found nothing. Water company came out and did their own checks...
  7. R

    the water heater problem... a thanksgiving mystery????

    Good afternoon & thanks in advance for your help & advice I have an American water heater, “FG” series from 2005. I recently awoke to my water heater spraying approximately 6 gallons of hot water out of my tpr valve along with significant condensation on the copper water pipe running into it...
  8. Meza

    Mystery device in airing cupboard on open vent system.

    Can anyone identify this device on my heating circuit, just before the pump? I've often wondered what it does but never worked it out
  9. S

    Potterton boiler mystery...

    Hello gang, I'm here hoping for help and advice with a problem which has already outsmarted four plumbers... We have installed a Potterton Gold Combi 28. It doesn't work. It'll fire up but dies pretty much as soon as the fan kicks in. Here's the strange part. We have another fully functioning...
  10. T

    Mystery valve on CH primarys

    Can anyone help identify this valve. LH 28mm is fed from a Ideal Mexico (being removed). HW is (was) gravity on separate 28mm so this is just heating only. I realise there will have been a handle at some point.
  11. M

    Can you solve the mystery of the 70 degree hot water?? (unvented system)

    Hello, We have just had a complete overhaul of our heating and hot water. We previous had a conventional (?) system (two tanks in the loft, copper tank in the airing cupboard) heated by a Worcester Bosch 18ri. Controlled by a 3rd gen Nest. We have changed to an unvented tank (Kingspan) system...
  12. D

    Mystery Occasional Flood from Hot Water Tank

    Hi all, I'm intrigued by an odd leak and wondered if anyone can shed light on this... Twice, we have gone away from home for some weeks and so shut off the water supply at the stopcock and shut off the immersion heaters to our hot water tank in our apartment. Around three days after we leave...
  13. D

    Absolute mystery

    Evening all So... had a new boiler fitted and pressure keeps dropping i called the guy back and we isolated the boiler from the rads at 1.0bar 36 hours later no change so i opened the flow and return and the pressure dropped to 0.8bar. So i have a leak on my paperwork simple yeah? Now this...
  14. M

    Help with my mystery of air in radiator system

    Hi, Every week i have to bleed just one radiator in my house for about 2-3 seconds and i simply cannot find out why. - Its a sealed system and I can see no drop in the pressure. - Its the radiator closest to the boiler and pressure relief valve if that helps. - I can find no leaks anywhere...
  15. B

    Mystery leak in unvented heating system

    Hi all, Newbie here. Not good way to start :( I've a Vaillant ecotec and pressurised cylinder too. Just had plumber isolate the cylinder and still losing pressure around 0.2bar over 12 hours. Been many months. Started losing all pressure in a day recently, over time was getting...
  16. V

    Mystery of Pressure Loss

    Had open vented system replaced with Combi boiler 3 months ago. Firebird Enviromax Oil condensing boiler. Had pressure dropping for last 6 weeks, needs topping up with water twice a day. Pressure dropping from 1.5 to 1. Here's the clues - any ideas? No sign of leak internally to house. Just had...
  17. Riley

    Betacom 30 C mystery

    Morning chaps got a bit of an odd one Boiler as above goes through the motions on both heating and hot water ignites and then does not stay lit Instantly thought detection probe,I had one of those on the van so I've thrown it in but still no joy I am leaning towards PCB but was just...
  18. M

    Mystery Tap Won't Stop Dripping

    Hi everyone, and apologies for such a basic question, but my bathroom hot tap is dripping and what is obviously a fairly easy fix (change of washers) has become a complete nightmare because I cannot find any of the washers I need to match to the existing in any shop - nor a single image of my...
  19. R

    Mystery pipe

    Anyone know what this fitting is for? I have this old pipe in my living room floor to ceiling. I want to get rid of it as I believe it's abandoned. Have checked with flat upstairs and flat downstairs, they have no corresponding pipe... It's steel, and the property is over 100 years old, was...
  20. J

    Mystery leak around a window

    Please help. i have a odd leak around my window that seems to have no origin.I know this is impossible but there's no condensation and it hasn't rained in a week. there is a slow drip of water running down the centre of the kitchen window frame window shuts it's then pooling on the outside cill...
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