The invisible college.

Millennia ago, a magical race called the Aesir found a new home on a distant world. Attracted to the cold during an ice age, they hibernated for hundreds of years at a time. With each awakening, however, they saw their world changed by ever-evolving mortals encroaching on their territory and way of life. Two civilizations with opposing magic, poised to clash over and over. Now, the Aesir are awakening to wage a new war, this time to exterminate t...