Between volunteering for the annual pumpkin festival and coaching her girls to the state soccer finals, high school teacher Tj Jensen finds her good friend Zachary Collins dead in his favorite chair. When the handsome new deputy closes the case without so much as a "why" or "how," Tj turns her attention from chili cook-offs and pumpkin carving to complex puzzles, prophetic riddles, and a decades-old secret she seems destined to unravel.