The Sage Stone Prophecy

During the untold millennia before patriarchy was conceived, the world was a very different place. Nothing concealed stays buried forever.
THE ARKANA SERIES
The forgotten past refuses to stay buried in an artifact hunt spanning continents, centuries, and lost civilizations. The prize is a cache of myth-busting relics that could rewrite history or end it completely. When a secret society squares off against a ruthless fundamentalist cult, only one faction can win. More importantly, only one will survive.
Volume 7 - The Sage Stone Prophecy
In the series finale, the Nephilim and the Arkana scour the farthest reaches of the planet for the hiding place of the legendary relic known as the Sage Stone. At the same time, mortal danger threatens friends and foes alike as the cult's leader pushes humanity to the brink of extinction. The fate of the world hinges on the outcome of a final confrontation with both factions pinning all their hopes on a prophecy that might not mean exactly what it says. If you've followed this saga from the beginning, THE SAGE STONE PROPHECY reveals at long last who will claim the most sought-after relic of all and how many others will lose their lives trying.