Bonnie Pinkwater Series

The Witch of Agnesi Full-time math teacher and part-time troublemaker Bonnie Pinkwater cares about her students, so when thirteen-year-old math genius Peyton Newlin disappears, she’s compelled to investigate. One by one, students who were competing with the young genius turn up dead. Bonnie suspects Peyton—until he himself is murdered. The investigation leads Bonnie to a coven of witches, a teenag...