There are loads of ways to hide secret messages in puzzles. The field of cryptography is built around it. Many meta puzzles have a special secret lurking inside their clever constructions. Heck, our friends at Penny Press even have an entire word seek called Secret Message.

But have you ever noticed that there’s a strange fascination in pop culture with secret messages in crosswords?

No, I don’t mean constructors hiding quotations, poems, or word seeks in their crosswords, though those are impressive feats of cruciverbalism.

I’m talking about stories about actual secret messages concealed in crossword grids, meant to be hidden from even the most diligent solvers, only a special few possessing the keys to finding the hidden words.

Oh, believe me, it’s definitely a thing.

Look no further than the first Crossword Mysteries movie. The film opens with a murdered art gallery owner with a crossword in his pocket. And it turns out that a devilish criminal mastermind was submitting puzzles to Tess’s daily crossword that contained hidden instructions for robberies to be conducted that day. Diabolical!

You might laugh, but this is hardly the only time we’ve seen crime, secret messages, and crosswords combined. It was a plotline in the radio show The Adventures of Superman, and Lois Lane’s life once depended on Superman’s ability to solve a crossword puzzle.

There are any number of mystery novels, cozy and otherwise, that contain hidden messages in crosswords. Nero Blanc’s Anatomy of a Crossword and Corpus de Crossword come to mind, as do any number of murder mysteries where a strange message scribbled on a crossword grid turn out to be a pivotal clue to catch the killer.

And there’s an even more curious subset of this in pop culture: crosswords and spycraft.

I could give you a simple example, like Bernie Mac’s character in the Ocean’s 11 remake pretending to solve a crossword, but actually writing down key information about the casino for the upcoming heist.

But that’s not really a secret message IN a crossword. No, it’s more of a secret message ON a crossword, though it is a bit of decent spycraft.

[From Spy vs. Guy.]

Let’s talk about spies and their crosswords, then.

In the TV show Burn Notice, former (and occasionally current) spy Michael Weston sometimes received hidden messages from his previous spy organization through the crossword, though we’re not given much info on how this is achieved.

In the James Bond prequel novel Double or Die, it’s actually the young Bond’s teacher who sneaks a secret message into a puzzle. He’s also a cryptic crossword editor, and he convinces his kidnappers to allow him to submit a crossword to the newspaper, because if he didn’t, it would let people know all was not well.

Naturally, the kidnappers didn’t spot the clues to his current location that the teacher had hidden in the puzzle. Bond, even in his youth, manages to do so with ease.

In the short-lived TV show Rubicon, crosswords are at the center of a fascinating unsolved mystery. An intelligence agent named Will finds out his mentor committed suicide after seeing a four-leaf clover.

He then finds a pattern across several crosswords that leads him to believe his mentor’s death is somehow connected to the pattern in the crosswords, and he tells his superior about it.

And soon after investigating it himself, Will’s superior is also found dead. Unfortunately, we never get a resolution for this story, but it certainly fits the bill.

So yes, the curious connection between secret messages and crosswords in pop culture is definitely a thing.

But did you know it also extends beyond fiction? Yup, I’ve got some real-world examples for you too.

Back in June of 1944, physics teacher and crossword constructor Leonard Dawe was questioned by authorities after several words coinciding with D-Day invasion plans appeared in London’s Daily Telegraph.

The words Omaha (codename for one of Normandy’s beaches), Utah (another Normandy beach codename), Overlord (the name for the plan to land at Normandy on June 6th), mulberry (nickname for a portable harbor built for D-Day), and Neptune (name for the naval portion of the invasion) all appeared in Daily Telegraph crosswords during the month preceding the D-Day landing.

So it was possible (though highly improbable) that Dawe was purposely trying to inform the enemy of Allied plans, and the powers that be acted accordingly. In the end, no definitive link could be found, and consensus is that Dawe either overheard these words himself or was told them by his students — possibly slipped by soldiers stationed nearby — and placed them into his grids unwittingly.

Yes, this was just a big misunderstanding. But sometimes, accusations like this have real-world consequences.

In Venezuela, a newspaper has been accused multiple times of hiding encrypted messages within their daily crossword puzzles in order to incite revolt against the government.

Another Venezuelan newspaper was accused of concealing messages ordering the assassination of a public official named Adan, the brother of President Hugo Chavez!

Some of the answers considered suspicious in the grid included “Adan,” “asesinen” (meaning “kill”), and “rafaga” (which can mean either a burst of gunfire, or a gust of wind).

Apparently this confluence was considered enough to warrant a half-dozen members of the intelligence service visiting the newspaper’s editorial office.

Now, were these cases of genuine secret messages being passed through the crossword, or were these coincidental events that appeared credible because the crossword/secret message concept has been part of pop culture for decades?

I leave that question to you, fellow puzzlers.

Can you think of any examples of crosswords with secret messages in pop culture or intersections of crosswords and spycraft that weren’t mentioned here? Let us know in the comments section below! We’d love to hear from you.

Well, summer’s over, but we still have deals galore for you to check out. You can find them on the Home Screen for Daily POP Crosswords and Daily POP Word Search! Check them out!

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