Germany, 1660: When a dying boy is pulled from the river with a mark crudely tattooed on his shoulder, hangman Jakob Kuisl is called upon to investigate whether witchcraft is at play in his small Bavarian town. Whispers and dark memories of witch trials and the women burned at the stake just seventy years earlier still haunt the streets of Schongau.

Terrified he may be going mad, he must keep the disturbing skill secret. But when it proves helpful in tracking his would-be killer, he has no choice but to embrace the newfound power. The retrocognition leads him to the house of a man recently deceased, where he encounters the clever and intriguing Miss Matilda Wren—who may be able to help him solve the many questions raised by the attack.

While putting away books from an estate sale purchase, rare book-dealer Steven Lukas finds a box he's never seen before wedged between books on a high shelf. In it he discovers what looks to be a small diary written entirely in code, a lock of hair, and old photographs of the Fairytale King. It isn't long however, before his excitement turns to fear as he realizes that mysterious others want the diary too - and will apparently kill to get it. Suspecting that his find may contain the secret truth behind Ludwig's death, Steven consults with art historian Sara Lengfeld. Soon they find themselves on the run together, investigating each of Ludwig's three castles for clues....

In 1524, in what is now Germany, hundreds of thousands of peasants revolt against the harsh treatment by their aristocratic overlords. Agnes, the daughter of one of these overlords, is not a typical 16th-century girl. She refuses to wear dresses and spends more time with her pet falcon than she does trying to attract potential suitors. In fact there is only one man who interests her: Mathis, a childhood friend whom she can never marry because of his lowly birth.

It’s the fifteenth century and only heretics are curious about the universe. Germany, 1494. Born under a rare alignment of the stars, Johann Georg Gerlach, "the lucky one" to his mother - is fated for greatness. But Johann’s studies and wonder at the sky have made him suspect. Especially in wake of the child disappearances that have left the God-fearing locals trembling and his one true love trapped in terrified catatonia. Her only words: "I have seen the devil..."