Agatha Pembrooke, a ruthlessly efficient historian, discovers her "perpetual intern," Zeke Thorn, is functionally immortal—and slowly turning to stone. Seeing a unique research opportunity, she forces Zeke to help her find a cure using a dangerous moss from a mystical Adirondack fissure. They learn the moss reverses petrification by burning Zeke's oldest memories as fuel. Facing a guardian of time itself and Aggie's cold ambition, Zeke must choose between becoming her archived specimen, accepting a merciful oblivion, or fleeing in a half-petrified state to claim his own fractured, difficult freedom.
