Jeremy Robinson (Origins Series #2 #3 #4)

Raising the Past (Origins #2)
A mammoth, flash frozen in solid ice 10,000 years ago is brought to the surface by a team of scientists. An act of sabotage frees the giant from its icy tomb and reveals the secret held inside.
The body of an ancient woman, cloaked in furs, slides out of the mammoth's belly. But it is not the woman that holds the team's attention ... it is the object she is clutching...a device created by an advanced civilization.
The device is accidentally activated, summoning forces who seek its destruction. It is the key to mankind's salvation and freedom from the men behind the curtain, pulling the strings and leading humanity towards destruction.

Beneath (Origins #3)
When evidence of microscopic life on Europa—Jupiter’s sixth moon—is discovered, a crew of astronauts and scientists embark on a mission to discover its source. Led by oceanographer and biologist, Kathy Connelly, the crew is charged with the task of melting through miles of ice to the hidden ocean beneath, where the search for alien microorganisms begins. But a startling discovery awaits them on the surface of Europa—life.
Vast fields of red, plant-like organisms fill the cracks crisscrossing the moon’s surface, surviving on nutrients welling up from the waters below. Encouraged by the discovery of life on the surface, Connelly and her crew activate the Thermal Exploratory System and melt through the ice toward a world that does not want to be found, toward an intelligence that will do anything to make sure they never leave.

Antarktos Rising (Origins #4)
A phenomenon known as crustal displacement shifts the Earth's crust, repositioning continents and causing countless deaths. In the wake of the global catastrophe, the world struggles to take care of its displaced billions. But Antarctica, freshly thawed and blooming, has emerged as a new hope. Rather than wage a world war no nation can endure, the leading nations devise a competition, a race to the center of Antarctica, with the three victors dividing the continent. It is within this race that Mirabelle Whitney, one of the few surviving experts on the continent, grouped with an American special forces unit, finds herself. But the dangers awaiting the team are far worse than feared; beyond the sour history of a torn family, beyond the nefarious intentions of their human enemies, beyond the ancient creatures reborn through anhydrobiosis-there are the Nephilim. The world races to claim a new continent, only to find it already taken.