Beneath Delphi’s sun-scorched stones, prophecy was never prediction, it was a blueprint. Dr. Helena Petrova swore she was done chasing legends. But when newly uncovered inscriptions beneath the Temple of Apollo reveal a second language embedded inside the Greek, precise geometric symbols mapping earth-fire, celestial timings, and hidden “keys” she becomes the one person who can unlock a power older than the gods. Cryos Dynamics, the corporation “rebuilding” Greece, offers unlimited funding…and airtight security. The Children of Prometheus, a tech-hating cult, whisper warnings and watch from the hills. As Helena unravels the cipher, threats close in from polished boardrooms to shadowed olive groves. From Delphi’s precinct to Crete’s storm peaks, Meteora’s sky monasteries, and the forbidden heart of Mount Athos, the truth points to a choice with world-shaping awaken the sleeping engine beneath the earth, or bury it forever. Perfect for fans of James Rollins, Dan Brown, and Clive Cussler, Echoes of the Last Oracle blends archaeological mystery, near-future suspense, and relentless momentum into a jaw-tightening ride you’ll finish in a single night.