The Witch of Agnesi
Bonnie Pinkwater is a teacher, a good one. She cares about her students. So when Peyton Newlin, a thirteen-year-old math genius, disappears, Bonnie starts nosing around. One by one, students who were competing with the young genius start turning up dead and Bonnie suspects Peyton may be... read more
Followed by A Calculated Demise.
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