The Inheritance of Stones. The Inheritance of Stones, #1

They were never meant to meet. Now, the fate of the world depends on their bond. When Oxford-trained archaeologist Hugh Wallace returns home to bury his grandfather, he expects grief-not secrets. But deep beneath the ancient folly on his childhood estate lies a truth guarded by his family for centuries: a set of mystical stones said to hold unfathomable power. Forced to flee across the globe with a deadly legacy, Hugh's journey takes him to Los Angeles-and to Helene, a fierce young woman with the same eyes, the same freckles, and the same haunted past.
Separated at birth, united by destiny, the two are drawn into a battle far older and darker than they could imagine. Hunted by a charming monster, stalked by shadowy figures only they can see, and protected by a guardian with secrets of his own, Hugh and Helene must unravel a mystery older than history and awaken powers they never knew they possessed. The stones have chosen their carrier. The keeper must protect her.
If they fail, the world will fall into chaos.*Perfect for fans of Deborah Harkness, Leigh Bardugo, and Dan Brown- Inheritance of Stones is a propulsive tale of ancient magic, found family, and the courage to choose light over darkness.