While helping Ruby Wilcox clean up the loft above their shops, China comes upon a box of antique handcrafted lace and old photographs. Following the discovery, she hears a woman humming an old Scottish ballad and smells the delicate scent of lavender....

Soon, strange happenings start to occur in Thyme and Seasons: misplaced items, a ringing bell, and the appearance of lavender sprigs in odd places. When a customer mentions seeing a mysterious woman picking flowers nearby and then suddenly disappearing, China must finally admit what Ruby has always known--their building is haunted. But by whom?

As China investigates, the tragic story of a woman in one of the old photographs unfolds. Annie Laurie was a young widow who'd lost both her husband and her child in the same day. She manages to survive through her lace-making business and finds happiness again only to have a suspicious death overshadow her new life.

China delves into Annie's century-old mystery and realizes that solving it could have unimaginable repercussions in the here and now.