Tiffani Manuella 
The Architect’s Oracle [EPUB ebook] 

1506. Rome reverberates with the creation of St. Peter’s Basilica.  Hidden within the rising edifice, a young woman, Elara Moretti, lives a double life. Disguised as the apprentice Elio, she infiltrates Donato Bramante’s workshop, her architectural genius masked by a necessary deception.  But Elara uncovers more than architectural brilliance; she finds a hidden language of esoteric symbols woven into the basilica’s design, a prophecy foretelling a cataclysmic event timed to the completion of the dome.
Driven by her INTJ nature, Elara embarks on a perilous investigation.  Her secret knowledge becomes a heavy burden, a weight shared only with the stars and the silent stones.  As the dome ascends towards heaven, so does the danger, threatening not only the nascent basilica but the entire city. Elara must convince the skeptical authorities, including the formidable Bramante himself, before it’s too late.
Complicating her mission is Lorenzo Bellini, a Vatican astronomer whose discerning gaze sees more than the apprentice’s façade.  Their shared fascination with the cosmos and the terrestrial kindles a dangerous attraction, a delicate dance amidst impending doom. Is Lorenzo a potential ally, or a threat to Elara’s carefully guarded secret?
Elara’s quest plunges her into the labyrinthine corridors of the Vatican, a world of whispering secrets and hidden agendas.  She navigates dusty archives and clandestine meetings, uncovering a conspiracy stretching back centuries. Aided by the reclusive scholar Silas Moreau and the unwavering artisan Iris Russo, Elara must decipher the prophecy’s true meaning before Rome meets its foretold destruction.
But the prophecy is more intricate than she imagined, revealing a corruption within the very heart of the Church. As the dome nears completion, Elara faces her ultimate challenge. Can she expose the conspirators and avert not just a physical disaster, but a symbolic one that threatens to reshape the religious landscape of Europe?  The fate of St. Peter’s, of Rome, and of Elara herself, hangs precariously in the balance, a testament to the power of one woman who dared to defy the constraints of her time.