Most of Greenland lay north of the Arctic Circle, so during the long winter months the sun disappeared. The farther north you went, the longer the midnight sun and polar night lasted each year.
At this time of year, the polar night could last for months. Now and then, the Northern Lights appeared over Greenland's skies, brilliant with color.
Bands of pale green light sometimes burst across the sky like colorful fireworks; at other times, they danced like fairies waving silken ribbons, bringing life to the night.
Near the Atlantic Ocean and Davis Strait, Greenland's southwestern corner lay a little farther north than Nuuk City, the island's main population center. It had a natural depression in the land and sat close to the coast.
The coastal cliffs had an unusual formation. A tall, olive-shaped mountain was blanketed in thick ice, as though it had been embedded in the land.
Beneath the endless permafrost and ice sheet lay Wolf Nest Base, spanning tens of thousands of square kilometers through the mountain and a network of underground caverns.
Small tunnel trains bound for Vibranium Meteorite Mountain shuttled back and forth. Countless threads of icy-blue energy streamed from the grand, temple-like central hall of Olympia into every corner of the base, supplying the underground city with all the power it needed.
In the Howlett Family Science Division's laboratory, Hank McCoy wore a large pair of gold-rimmed glasses. His furry, fan-shaped paws deftly held a soldering iron as he adjusted a strange, curved device.
Scott Summers wore special glasses with russet-red lenses. Seated in a chair, he studied a square glass tank, much like a large fish tank. Bubbles rose through the clear liquid inside, where a strange object drifted up and down.
His brother Alex had hurriedly left him here and disappeared, much