Age of Rebirth
Finally, after an Age of Ice the land begins to thaw. The devastation wrought by endless winter wiped all civilization from the surface of Erebus. Its remnants have spent an age struggling to survive. Huddled in deep caves underground, your people have held on to memories of a time when they lived freely under the open sky. Spring has come, and with it an Age of Rebirth into which you can lead your people to rebuild what has been lost.