And Be a Villain

And Be a Villain (British title More Deaths Than One) is a Nero Wolfe detective novel by Rex Stout, first published by the Viking Press in 1948. The story was collected in the omnibus volumes "Full House" (Viking 1961) and "Triple Zeck" (Viking 1974).
Plot introduction.
A radio show guest is poisoned on the air during a plug for the show's sponsor, a soft-drink manufacturer. The negative publicity, and the low bank balance at tax time, brings Nero Wolfe into the case — and into his first recorded encounter with a shadowy master criminal.
"And Be a Villain" is the first of three Nero Wolfe books that involve crime syndicate leader Arnold Zeck and his widespread operations. The others in the Zeck Trilogy are "The Second Confession" and "In the Best Families". In each book, Zeck — Wolfe's Moriarty — telephones Wolfe to warn him off an investigation that Zeck believes will interfere with his crime syndicate. Each time, Wolfe refuses to cooperate, and anticipates that there will be consequences.
The title is from Act I, Scene V, line 114 of William Shakespeare's "Hamlet", in which the prince says of his murderous uncle King Claudius, "That one may smile, and smile, and be a villain." Remarking on the change from Stout's title to "More Deaths Than One" for the British edition, Rev. Fredrick G. Gotwald wrote, "It seems strange that the name was changed in a country from which the original came."
Plot summary.
Cyril Orchard, the publisher of the weekly horse racing sheet "Track Almanac," is poisoned with cyanide during a live soft drink commercial on a popular radio talk show. A media sensation, the case attracts the attention of Nero Wolfe, who is facing a crippling income tax bill, and Archie Goodwin is dispatched to convince the producers and sponsors to hire Wolfe to investigate the crime. The police have identified several suspects, including the show's host Madeline Fraser; her business manager, friend and former sister-in-law Deborah Koppel; her on-air side-kick Bill Meadows; Tully Strong and Nathan Straub, representatives of the show's sponsors; script-writer Elinor Vance; Nancylee Shepherd, the head of Fraser's fan-club; and F.O. Savarese, an assistant professor of mathematics and the show's other guest.
Although his initial investigations seem unpromising, Wolfe eventually learns that a separate bottle of the beverage being advertised was provided for Fraser, identified with tape around the neck. When pressed, the producers admit that Fraser is unable to drink the beverage she was advertising because it gives her indigestion, and instead drinks iced coffee from the bottle instead. As the marked bottle was the one containing the poison, this suggests that Fraser was the intended victim instead of Orchard. 
Wolfe passes this information on to Inspector Cramer, seeing this as an opportunity to claim his fee without further work. When the press -- prompted by Archie -- criticises him for his lack of effort, however, he is stung into further action but, to Archie's surprise, begins investigating a different murder. Beula Poole, the publisher of an independent political and economics journal, has been shot dead in her offices days before. Although there is no apparent connection between the crimes, Wolfe is skeptical that two independent publishers would be murdered within weeks of each other without any link. His investigations reveal that the magazines were in fact the front for a sophisticated blackmail operation which targeted its victims using the threat of slander to compel them to purchase subscriptions for a year. This, in turn, brings Wolfe into contact with Arnold Zeck, the shadowy and powerful criminal mastermind behind the operation, who warns Wolfe not to interfere in his affairs.
After the blackmail story is published Walter Anderson, the president of the soft drink company, tries to end Wolfe's investigations by paying him off and announcing that his company is withdrawing sponsorship from Fraser's show. With no further leads, Wolfe sends Archie to Fraser and her entourage with a fake letter implicating Elinor Vance in order to try and shake a response out of the suspects. During the meeting, Deborah Koppel dies after eating a piece of candy laced with cyanide. Discovering the letter on Archie, the police threaten to charge him with obstructing justice, but they are interrupted by a phone call from a rival radio station. Wolfe has announced that he knows the identity of the murderer and threatens to reveal it on-air that night.
To avoid humiliation, the charges against Archie are dismissed and Wolfe is permitted to reveal the identity of the murderer in his office. Once the suspects have arrived, Wolfe presses Anderson to reveal the reason he tried to terminate his contract with Wolfe and Fraser's show. Anderson had discovered that Madeline Fraser had received blackmail letters, and it is revealed that Fraser was being accused of murdering her husband years before. However, while the blackmail syndicate had previously created false claims about their victims to slander them, in this case they had unwittingly stumbled upon the truth – Fraser "had" in fact murdered her husband. Fraser murdered Orchard and Poole to conceal her secret, and Koppel when she began to suspect the truth. Fraser is arrested and charged with murder. The novel ends with Wolfe receiving a phone call from Zeck, congratulating him on solving the case — and warning him not to interfere in the crime lord's affairs.
The unfamiliar word.
"Readers of the Wolfe saga often have to turn to the dictionary because of the erudite vocabulary of Wolfe and sometimes of Archie," wrote Rev. Frederick G. Gotwald.
"Like all of us, Wolfe has his favorite words, phrases, and sayings," wrote William S. Baring-Gould. "Among the words, many are unusual and some are abstruse."
Examples of unfamiliar words — or unfamiliar uses of words that some would otherwise consider familiar — are found throughout the corpus, often in the give-and-take between Wolfe and Archie. "And Be A Villain" contains several examples, including the following:
Problematic probability.
In Chapter 8, Professor Savarese provides a formula for the normal curve, touting it as a tool that could be used in crime detection. Unfortunately, the typesetting process let the professor down. Over time, different editions of "And Be a Villain" represent the formula differently, changing (for example) exponents from 2 to 3. Furthermore, the equation contains a mysterious "V" which is in fact just the leftmost portion of a radical sign. A more accurate discussion of the probability density function can be found at Normal distribution.