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Kamianets-Podilskyi, 1906. The beautiful scientist Isolda Ognevytska dies in the Bellevue Hotel under mysterious circumstances. Next to her body, the head of the Proskuriv police investigation department, Oleksii Zavalskyi, is found unconscious and is now suspected of the crime. Inessa Poots, who has returned to Proskuriv and mastered the profession of an investigator, sets out to find the real killer of Ognevicha. However, to do so, she will have to unravel the mystery of Cardinal Pietro Ottoboni's prophecy, which dates back to the Ottoman rule of Podillia, and plunge into the dirty secrets of the townspeople. And the old ghosts of the Minerva Tower will come to life again...

"The Secret of St. Florian" is the second book in the series "Inessa Poots. A young lady detective from Proskuriv".