August 4th, 2020
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Buy all five books in the Great Library

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Sometimes the smallest secret creates the biggest ripple of trouble.

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When she holds the key to the one case he couldn’t solve, he must choose justice or love.

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They must risk everything-- before it’s too late…

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A meeting of minds…But a most unsuitable match!

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He has nothing and everything to lose…

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His former lover has returned with an explosive secret.

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Buy all five books in the Great Library, now in paperback

The Quotient Of Murder by Ada Madison


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Also by Ada Madison:

The Quotient Of Murder, November 2013
Paperback / e-Book
A Function of Murder, January 2013
Paperback / e-Book (reprint)
The Probability Of Murder, March 2012
Paperback / e-Book
The Square Root Of Murder, July 2011
Paperback / e-Book

The Quotient Of Murder
Ada Madison

Professor Sophie Knowles #4
Berkley Prime Crime
November 2013
On Sale: November 5, 2013
Featuring: Sophie Knowles
304 pages
ISBN: 0425262707
EAN: 9780425262702
Kindle: B00BC255W8
Paperback / e-Book
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Mystery Cozy

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 performs some quick calculations, she’s left with a nagging question: Was it really suicide?

When one of Sophie’s favorite students, a performer in the concert, is brutally beaten and left in a coma, Sophie’s mind kicks into overdrive. The horrific incidents seem too coincidental to be unrelated, but can Sophie put together the pieces from a twenty-five-year-old murder before any other students get hurt?

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Professor Sophie Knowles


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