Beneath the ivy-covered stones of Heidelberg

Castle, something ancient stirs.

When renowned travel sleuth Grace Whitmore arrives in the Neckar Valley for a peaceful retreat, she's drawn into a centuries-old legend come to life. Locals whisper of a spectral woman in white who appears before misfortune —and now, a visiting scholar has vanished without a trace

100

during a midnight tour.

Grace's search for answers leads her deep into the castle's secrets: Cold War espionage, a sealed-off tower room, codediletters in Latin, and a museum hiding more than artifacts.

-As whispers echo through

the Glass Hall and footsteps haunt the old ramparts, Grace races to unmask a modern crime cloaked in the trappings of folklore.

Is it merely legend —or is a ghost truly walking Heidelberg once more?

In a city where history never sleeps, Grace must confront the shadows of the past to prevent tragedy in the present.