Sunrunner

In the third installment of the Sunrunner series, a young mathematician faces the sudden disappearance of her father and the theft of a family heirloom amid mounting dangers from both personal secrets and an impending volcanic eruption. As her family and unexpected allies gather to aid her search, she navigates tense relationships and unsettling revelations, all while trying to prevent catastrophe. Packed with intrigue, romance, and suspense, this installment deepens the series' ongoing story arc and introduces new complexities for its characters.