Friday, May 20, 2016

Poisoning People for Fun and Profit--Part 5: Arsenic


Arsenic used to be the bread and butter of poisons. Probably more classic mystery novels rely on it than any other. In the 19th century it could be found in pretty much every household, since rats and other vermin were a constant problem. 

People could buy it without anybody suspecting them of planning to do in their rich, cranky Great-Aunt Augusta.

Arsenic in its pure form

And best of all, the science didn't exist to detect it.

Historical mystery author Linda Stratmann has written a fascinating book on the Victorians and poison called "The Secret Poisoner: A Century of Murder" In a recent interview with Kelly Faircloth in Jezebel, she said murder by poison was much feared by the Victorians for several reasons: 

"First of all, you could be murdered by your nearest and dearest. Now that was scary, you see. You might not be the sort of person who’d go out and get drunk and get into a fight, but you could still be poisoned by your cook. You could fear absolutely anybody, even people who ought to be powerless, like servants or your wife or your children. The other thing that people really feared about poison was the fact that poison attacks you from within. You can’t run away from it. You can’t fight back."


My favorite mystery involving arsenic is the daffy comic play by Joseph Kesselring, Arsenic and Old Lace. My one regret in giving up my acting career to write is that I never got to play one of the murderous old dears in that play. I love the classic film starring Cary Grant as the ladies' nephew Mortimer Brewster. (Fun fact: the part was first offered to Ronald Reagan.)  


Unlike the first four entries in my poison series, arsenic is not an organic compound. It's a metal. An elemental metal, as a matter of fact, like gold and silver. It's represented by the symbol "As" and has an atomic weight of 74.9216. For centuries it was mostly used for killing rats and treating lumber. But it has 21st century uses too. Combined with gallium, it forms a semiconductor used in high-speed integrated circuits for supercomputers and cell phones.

It is super-toxic in all forms and its effects are cumulative. So people can be poisoned over a long period of time.

Arsenic is the murder weapon in one of my favorite mysteries, Dorothy L. Sayers' Strong Poison. But Ms. Sayers wrongly has the murderer make himself immune to arsenic by taking tiny doses and building up immunity over time. Modern science shows this isn't possible, since metals are not eliminated by the body and the arsenic would have killed him, rather than make him immune. 

I'm sure Ms. Sayers, who read Classics and Medieval Literature at Oxford, took her information from Livy or Pliny the Elder, who both told the tale of the ancient king Mithridates. The stories said the kingone of Rome's most formidable enemiesregularly took arsenic and other poisons in tiny doses to make himself immune to poison.

Mithridates VI of Pontus
Mithridates VI, who ruled Pontus (in modern Turkey) from 135–63 BC, also seems to have had a forward-looking hairdresser. His swirly locks shown in this statue could contend with those of a contemporary American Presidential hopeful. Or maybe he has a vampire possum on his head. 

But if the king did indulge in the poison-inoculating regime that's now called "mithridatism," arsenic probably wouldn't have been an ingredient, since it would have killed him eventually. And as we know from A. E. Housman, Mithridates, he died old.  


From A. E. Housman's poem, 
Terence this is Stupid Stuff

There was a king reigned in the East:
There, when kings will sit to feast, 
They get their fill before they think 
With poisoned meat and poisoned drink. 
He gathered all that springs to birth 
From the many-venomed earth; 
First a little, thence to more, 
He sampled all her killing store; 
And easy, smiling, seasoned sound, 
Sate the king when healths went round. 
They put arsenic in his meat 
And stared aghast to watch him eat; 
They poured strychnine in his cup 
And shook to see him drink it up: 
They shook, they stared as white's their shirt: 
Them it was their poison hurt. 
—I tell the tale that I heard told.
Mithridates, he died old.



What about you, readers? Do you find arsenic makes a good murder weapon for mysteries? What mysteries can you name that use arsenic? 

Other Posts in this Series



FOOD OF LOVE: a Comedy about Friendship, Chocolate, and a Small Nuclear Bomb.


There's also some poison involved: epibatidine, which comes from the South American Poison Dart Frog. I'll be talking about that in another post in the series. 


Food of Love (2)
Two sisters: one white, one black. Two worldviews: one liberal, one conservative. But these two women have one goal in common—one they share with most women in modern society: the urge to diminish themselves by dieting. Food of Love is a historical comedy-mystery-romance set in the 1990s that carries a powerful message. It offers some of life’s darker truths—told with a punchline.

After Princess Regina, a former supermodel, is ridiculed in the tabloids for gaining weight, someone tries to kill her. She suspects her royal husband wants to be rid of her, now she’s no longer model-thin. As she flees the mysterious assassin, she discovers the world thinks she is dead, and seeks refuge with the only person she can trust: her long-estranged foster sister, Rev. Cady Stanton, a right-wing talk show host who has romantic and weight issues of her own. Cady delves into Regina’s past and discovers Regina’s long-lost love, as well as dark secrets that connect them all.

Available in eBook from:
Available in Audiobook from:




8 comments:

  1. There's an anecdote, possibly apocryphal, involving Winston Churchill and (I think) Lady Astor, a member of parliament. She said: "If you were my husband, I'd put arsenic in your tea." WC said: "Madame, if I were married to you, I'd drink it."

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    1. Ruth--That's a fabulous story, whoever said it. Thanks for the laugh!

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  2. Loving this series!

    The Adventure of the Devil's Foot and A Study In Scarlet are I think the only two Sherlock Holmes stories to involve murder by poisoning, but not sure if it was arsenic specifically.

    I once toyed with the idea of a series of mysteries based on the Periodic Table, in order, but it quickly became clear very few people other than chemists would even have heard of most of the elements, let alone make the connection to the stories, and I'd be on a hiding to nothing.

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    1. Mark, A lot of them might think Periodic Tables refers to menstruation! lol

      Actually, I think it might be the start point of a good idea for mysteries or maybe thrillers. For one thing, you don't have to tell them it's the periodic table. The chemical symbols can be code that needs to be broken, leads to explosives and nukes. Plus the names of the less well known elements might make good titles. The Titanium Threat. There's platinum and gold—remember Auric Goldfinger?

      Anyway, my two cents off the top of my head but why not play with the idea a little? See what happens.

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    2. Mark--So there are only two Holmes arsenic poisonings? But it was so handy for Victorians!

      I like your Periodic Table mystery idea. Although Ruth may be right...I like her idea of a Dan Brown type code thing, though. Hmmmm.

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    3. LOL! You're right, a codec mystery thriller might be just the angle to make another dream come true. Being hampered the past few years by a thankfully-now-over writing partnership I had to abandon all thoughts of writing anything that might require brain cell stimulation. No more dumbing down. Time to dumb up! Fun fact: I "discovered" the periodic table when I was seven because I had a glossy colour plate in my encyclopaedia, and Dmitri Ivanovich Mendelyev was the first name I learned to spell in Cyrillic Russian when I was twelve. Time was I could recite the entire (as then) periodic table, in order. Just thought about it now and got stuck at 21. Must be getting old.

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  3. Just today my daughter told me how she thought when people spoke of arson and arsonists, they were referring to arsenic! I was howling. And here you wrote about it today. Thank you.

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    1. Patricia--Isn't it amazing to see how a smart kid will put two and two together and get 37? That is so cute. And smart. :-)

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