Ancients Awaken - Diamora Cycle, #1

Days flow together deep under the ice of Antarctica. Arturo Davini's expectations were low until luck or fate sent him through one of the many gateways found across the world. He fell into another place and came back forever changed-setting off a chain of events that spirals dangerously toward the end. Running from her former employer, Danae Lee searched for answers to the mysterious symbol and the room beyond.
Too many too precise to be coincidence or hoax, the rune has been photographed across the world in ancient ruins both on land and under the ocean. Few believe her findings, but there is more to these places. She plans to prove it. A former park ranger has something to show her that may tie the pieces together. Liam Prescott works with Danae's parents in a ruined temple in Peru. While studying the ancient paintings, the Lee's disappear into a light coming from the small chamber beyond the symbol.
Liam must find Danae. Only together will they be able to find her parents. As long as his own father doesn't get in the way. An ancient power wants to control the outcome of humanity, and only one thing stands between that power and complete domination.