Fate, in a rare inspiration, leads the heroes down unexplored paths, and love weaves its own bonds, speaking a language only it knows.

Eliza, after her mother's sudden death, discovers an old jewel in a crypt in her house, letters from a French aristocrat of the 19th century, and a box with peculiar maps.
Eliza and Konstantina embark on a mysterious search that brings them face to face with historical figures, real elements, and strange urban legends. Intrigues, puzzles, enigmatic buildings of the capital, churches with secret passages, and a labyrinth of tunnels in underground Athens open up before them.
And as the thread unravels, the mystery and danger deepen for Eliza. An inexplicable relationship connects her family to the Duchess of Plakentia, and a secret of centuries is threatened...
Only Eliza's grandmother knows the disruptive truth, though...
What does the Secret Testament hide that must not be revealed?

A novel where imagination, historical figures, and real elements unexpectedly converge at the same crossroads.