The Danger Within – Michael Gilbert (1952)

DangerWithinThe Danger Within first flickered onto my radar a little over a year ago while I was reviewing Tomcat’s list My Favorite Locked Room Mysteries over at Beneath the Stains of Time.

“This is one of my all-time favorite mystery novels from the post-WWII era and of the best blends of the formal detective story, thriller elements and a semi-autobiographic at the same time. The setting is a POW camp in Italy and has a nifty impossible situation: a man has been found dead in a secret escape tunnel and the entrance was blocked with a furnace, which needed the combined strength of half a dozen men to budge as much as an inch.”

A locked room mystery set in a WWII POW camp?  Sign me up please.

While I spent my childhood consuming a hefty amount of mystery and science fiction, I more than dabbled in tales of the trenches.  The idea of an impossible crime taking place on a battlefield or in a prison camp is intriguing beyond simply stepping outside of the expected setting of a country house or the odd castle.  You expect death in war time, and I’ve heard of more than one GAD novel in which a murderer has attempted to disguise their deed among the ruins of bombed out England.  The actual theatre of war is different though.  There, death simply is.  The notion that a friend could become foe in the face of a clearly defined common adversary is no unique concept – just see Platoon.  Still, mix in an impossible-style murder plot and I’m all game.

The Danger Within (originally titled Death in Captivity), unfolds in an Italian POW camp.  Several hundred men from a number of nations are housed in barracks surrounded by a large yard.  The camp has a reputation for being one of the better places one could end up in captivity – the occupants have fairly free reign during the day, although always under the watchful eyes of the Italian guards.  The men occupy their days with distractions such as rugby matches, theatre,…and escape.

A history of failed escape attempts have left the men with one strong bet – a tunnel of considerable length that has survived detection for months.  The secret to its success is the undetectability of its entrance.  This is no mere hole under a few loose boards.  Instead, an entire concrete slab in the kitchen of one of the huts can be hoisted by four men with pulleys.  The entrance to the tunnel is effectively hidden because it’s too large to be detected.

The tremendous effort necessary to gain access to the tunnel forms the foundation for a baffling impossibility – one morning, the body of one of the captives is found in the tunnel.  Four men would have had to cooperate to open the tunnel, and this would have had to be accomplished in spite of the entrance being situated right next to an entire barrack’s worth of bunks.

“It is crazy.  That’s what ought to make it easy to solve.  If it was ordinary, there might be half a dozen solutions, and you could never be sure that you’d get hold of the right one.  With a crazy problem like this, if you can find any solution at all, it must be the right one.”

Gilbert amps up the tension immediately upon discovery of the corpse. Roll call is scheduled in a few hours, and every man in camp must be accounted for.  What to do with the body?  The men embark on an escapade to smuggle the victim to another housing unit, where they attempt to stash the body in an abandoned tunnel.  They stage the scene to make it look as if the deceased perished in a cave-in and then turn the evidence over to the guards.

The Italians would typically brush off such an incident by doling out minor punishments.  In this case, they seem dead set to investigate the circumstances of the death and prove that there was a murder – despite no outright evidence that there was anything suspicious about the staged crime scene.  Why are the guards acting so differently this time?

The prospect of one of their own being tried for the murder puts the prisoners in an odd spot.  They must solve the crime quickly – both to prove the innocence of an unfortunate scapegoat, but also to learn how the body got into their supposedly secret tunnel in the first place.

“He realized he was in a position which, as a reader of detective novels, he had often imagined himself occupying without ever really expecting to do so.  He had been invited to investigate a murder.”

The Danger Within packs a bit more tension than the traditional Golden Age mystery  To be fair, it is from a few years later.  Still, it feels very much of the time, in spite of a very unconventional setting.

As much as this is a mystery, it is a tale of war time captivity.  It feels lazy to draw a parallel to The Great Escape – The Danger Within preceded the renowned film by over a decade, although it was published two years after the book that led to the adaptation.  Yet, how can I not?  We have men living under the pressure of captivity, the camaraderie that they share, and the schemes they must devise on a pathway to escape.  How to dig unnoticed?  How to dispose of the dirt?  How to obtain materials to shore up the tunnel to keep it from collapsing?  How to keep an eye out for an unexpected guard?  In the event of one, how to quietly sound the alarm?

That an impossible crime is dropped in the midst is pure icing on the cake.  In fact, while the promise of solving the puzzle provided an adequate goalpost for a mystery novel of the sort, I was just as much intrigued to see whether and how the men would make it out of the camp.

In the end, it was probably the escape angle that proved most satisfying.  I wouldn’t quite call the solution to the impossibility disappointing, but it didn’t deliver anything that I hadn’t already considered.  The “who” was at once surprising, while at the same time a bit predictable.  It didn’t matter though.  The Danger Within ends so strongly that I closed the book mourning that I didn’t have at least another fifty pages left.  Michael Gilbert had built such a cast of characters and sense of camaraderie that I had to know what more would happen next.

The Danger Within provides a satisfying blend of the mystery of an impossible crime with the tension and escapades of an escape thriller.  The book came fairly early in Michael Gilbert’s career (1952), and followed immediately after two of his other more renowned novels – Small Bone Deceased (1950) and Death Has Deep Roots (1951).  I’ll most likely be reading one of those two next, although I picked up another seven Gilbert works immediately upon completing The Danger Within.

The author published about 30 novels over the course of his career, although I get the sense the quite a few of the later titles were more of the espionage/action/thriller/crime variety.  Although I primarily focus on GAD mysteries, I’d be willing to experiment with some of Gilbert’s other genres given the strength of the POW camp storyline of The Danger Within.  Does anyone have any thoughts on his wider works?

15 thoughts on “The Danger Within – Michael Gilbert (1952)”

  1. You commented recently on my look at The Crack in the Teacup that you were reading a “gripping” Michael Gilbert novel and I guess this one is it!! LOL. I certainly think you’ll enjoy Gilbert’s take on “innocent man has to battle a corrupt organization at great personal cost” in Crack in the Teacup as well as a few others. But you mentioned you had a copy of Night of the 12th and, oh my, is that one ever good. It’s actually a serial killer novel and a very surprising one, with a “twist in the tail” that is extraordinary. It reminded me of a novel … well, I won’t say more until you read Night of the 12th, but it was published in 1935 and is still fresh and scary as hell today. And I think it will also make you think of a specific movie and perhaps a true-crime story!


    1. I picked up Crack in the Teacup based on your recommendation, and along with it bulk bought Blood and Judgement, Trouble, Overdrive (The Dust and the Heat), The Long Journey Home, Game Without Rules, and Mr. Calder and Mr. Behrens.

      Although I have Night of the 12th, it was somewhat on the bottom of my stack based on my glance at the front/back of the book. Thanks for the recommendation, I’ll be moving it much higher in the list.


  2. I’ve had mixed experiences with Gilbert’s work. Loved Death Has Deep Roots and Danger Within. But got quite bored with Smallbone Deceased and Mr Calder and Mr Behrens. Blood and Judgement was somewhere in the middle.


    1. Well, I do own all of those. I suspect I’ll try Death Has Deep Roots next, if only because I have a gorgeous Dell cover. I’m curious to try Smallbone Deceased since opinions are so divided. Thanks for the opinions!


      1. I’m with Kate in thoroughly not enjoying Smallbone Deceased — far too much naturalistic dialgoue and snail’s pace plotting for my tastes. Mind you, I also didn’t get on with Gilbert’s Close Quarters, so I may not be the best example. Loved this, though, it’s a superb book, beautifully written, absolutely pitch-perfect in tone, and as gripping as anything I’ve read in pretty much any genre.


      2. Have just stumbled upon your website and am thoroughly enjoying it.

        One thing I am a bit surprised about in this review – no mention that Gilbert actually WAS a POW in Italy, he was captured in North Africa. After the Italian surrender he escaped and evaded recapture for weeks before reaching the Allied lines. He knew whereof he spoke when it came to POW camps.


        1. I believe that one of the more recent reissues of The Danger Within contains a forward that goes into some detail on Gilbert’s time as a POW, but I haven’t personally read it. I am a bit surprised that I left that point out of my post – his background in the very situation that the book is about really lends an authenticity to it that might otherwise go unnoticed.


  3. I’ve only read a few short stories by the writer, and liked them fine. I do have a copy of this – the Pan tie-in edition with a painting of Richard Todd on the cover – but still haven’t gotten round to reading it.


  4. I confess, the only works by Michael Gilbert I’ve read have been some of his short stories published in EQMM decades ago, most of them about the characters Calder and Behrens. They did not leave me wanting to investigate him further… but yeah, an impossible-crime story with a World War Two background? I will have to get my hands on a copy of this one.

    Liked by 1 person

    1. Super late reply, but I just realized that I own a collection of Michael Gilbert short stories featuring Calder and Behrens – Game Without Rules. Doesn’t sound like it is something you’d recommend though…


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