Tails, You Lose (Witch City Mystery 2)

The Tabby is housed in the long-vacant Trumbull's Department Store. As Lee and her intrepid students begin work on a documentary charting the store's history, they unravel a century of family secrets, deathbed whispers--and a mysterious labyrinth of tunnels hidden right below the streets of Salem. Even the witches in town are spooked, and when Lee begins seeing visions in the large black patent leather pump in her classroom, she's certain something evil is afoot. But ghosts in the store's attic are the least of her worries with a killer on the loose. . .