A Study in Sorcery is an alternate history mystery novel by Michael Kurland featuring Randall Garrett's fictional detective character Lord Darcy. It was first published in paperback by Ace Books in 1989; a trade paperback edition was issued by the Borgo Press imprint of Wildside Press in May 2011, followed by an ebook edition from the same publisher in July of the same year, reissued in February 2019. An audio-book version was published by Audible Studios in February 2012.
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