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Use "whodunnits" in a sentence
"Recently, there was a lengthy discussion on a mystery listserve about humor in whodunnits."
"Once known as "trout whodunnits", these have been replaced by what might be termed an annex-genre of trout procedurals; merging nature-writing with knowledge of both forensics and law, these works also occasionally add elements of fantasy (one work I read was set on a planet populated by a civilization of speaking trout): science fiction meeting law and order meeting fish."
"In her review of Vera yesterday Zoe Williams pointed out that British whodunnits invariably combine believable characters with utterly preposterous crimes."