Dr. Sophie Knowles loves using puzzles to make math fun for students. But when winter seizes Henley College, she must thaw out a cold case to track down a killer--her most difficult puzzle yet . . . Winter Intersession is in full swing, and campus is buzzing over the concert celebrating the bell tower's reopening. The building has been shuttered for twenty-five years, and Sophie's shocked to learn why--a student leapt from it to her death. But she's even more troubled by the secrecy surrounding the case. After Sophie ...

The Quotient of Murder 2014, Wheeler Publishing, Farmington Hills, Mich.

ISBN-13: 9781410468772

Large type / large print

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The Quotient of Murder 2013, Berkley Books

ISBN-13: 9780425262702

Mass-market paperback

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