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Home / Mystery / Mystery Series / The Professor Sophie Knowles Mysteries

The Professor Sophie Knowles Mysteries

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A Function of Murder
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The Probability of Murder
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The Quotient of Murder
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The Square Root of Murder
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Crossroad Press Audio & Digital Books

Welcome to Crossroad Press

Welcome to your one stop source for all things Crossroad Press. As you’ll have noticed by now, we’ve broken our catalog into a series of imprints. This will make it easier for you to find the books you want, and simpler to purchase, download, and enjoy our print and digital content. General non fiction, mainstream fiction, and books not easily classifiable will remain under the Crossroad Press main imprint. In addition, we have added: Macabre Ink for horror and dark fantasy, Gordian Knot Books for Mysteries and Thrillers, Rendezvous Press for Romance, Mystique Press for Science Fiction and Fantasy, Dimension W for Westerns and Weird Westerns, Panta Rei Press for New age and Metaphysical titles, and for younger readers Otherside Press for Teen and YA titles, Wonderstruck Books for Middle Grade Readers and K-Bug Books for first readers and children’s picture books. Welcome to Crossroad Press!

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