A post-apocalyptic horror series about an ancient virus.
"The Rift" refers to several different media and gaming projects. Depending on what you are looking for, here is the "full content" breakdown for the most likely matches: The Rift
An online fantasy game where players defend the world of Telara from planar invasions. A post-apocalyptic horror series about an ancient virus
This 4-book collection includes: The Fall , Dead of Winter , Death Springs Eternal , and The Summer Son . Dead of Winter