It is winter in Area X. A new team embarks across the border on a mission to find a member of a previous expedition who may have been left behind. As they press deeper into the unknown, navigating new terrain and new challenges, the threat to the outside world becomes more daunting.

"To stop the world from burning, it's up to Sigma Force to uncover a secret buried at the heart of our planet. The Titan Project-an international research station off the coast of Australia-discovers a thriving zone of life in an otherwise dead sea. The area teems with a strange bioluminescent coral that defies science, yet holds great promise for the future. But the loss of a military submarine in the area triggers a brutal attack and sets in motion...

"In the remote mountains of Croatia, an archaeologist makes a strange discovery: a subterranean Catholic chapel, hidden for centuries, holds the bones of a Neanderthal woman. In the same cavern system, elaborate primitive paintings tell the story of an immense battle between tribes of Neanderthals and monstrous shadowy figures. Who is this mysterious enemy depicted in these ancient drawings, and what do the paintings mean? Before any questions can...

"It begins in Africa... A United Nations relief team in a small village in the Congo makes an alarming discovery. An unknown force is leveling the evolutionary playing field. Men, women, and children have been reduced to a dull, catatonic state. The environment surrounding them--plants and animals--has grown more cunning and predatory, evolving at an exponential pace. The insidious phenomenon is spreading from a cursed site in the jungle -- known...

In the winter of 1885, decorated war hero Colonel Allen Forrester leads an exploratory expedition up the Wolverine River and into the vast, untamed Alaska Territory. Leaving behind Sophie, his newly pregnant wife, Forrester records his extraordinary experiences in hopes that his journal will reach her if he doesn't return. As they map the territory and gather information on native tribes, whose understanding of the natural world is unlike anything...

5,000 years in the future, humankind has spread across thousands of worlds, and more than a dozen different governments exist in an uneasy truce. But human beings have found no signs of other life anywhere approaching human intelligence. This changes when scientists discover a sunless planet they name Danann, travelling the void just beyond the edge of the Galaxy at such a high speed that it cannot be natural. Its continents and oceans have been...

"Volcanologist and natural hazards expert Jess Phoenix has dedicated her life to scientific exploration. Her career path--hard earned in the still male-dominated world of science--has shoved her headlong into deep-sea submersibles, congressional races, glittering cocktail parties at Manhattan's elite Explorers Club, and numerous pairs of Caterpillar work boots. Ms. Adventure is her riveting, rolling blend of personal memoir, daring adventure, scientific...

"Crane, the former president of the Royal Geographic Society, documents the remarkable expedition undertaken by a group of twelve European adventurer-scientists in the mid-eighteenth century. The team spent years in South America, scaling volcanoes and traversing jungles before they achieved their goal of establishing the exact shape of the Earth by measuring the length of 1 degree latitude at the equator"

In the early years of the 18th century, a band of French scientists set off on a daring, decade-long expedition to South America in a race to measure the precise shape of the earth. Like Lewis and Clark's exploration of the American West, their incredible mission revealed the mysteries of a little-known continent to a world hungry for discovery. Scaling 16,000 foot mountains in the Peruvian Andes, and braving jaguars, pumas, insects, and vampire bats...