Seventh Sun of a Seventh Son

In 1947, the sun suddenly turned blue. Nobody on Earth knew that this was caused by a Vroktid egg landing inside. As far as anyone could tell the color was the only side effect. After a week the sun returned to normal and the world's scientists declared it a harmless natural phenomenon.

But during that week there was an unnoticed radiation that washed over the planet. This turned out to be the source of many people gaining unnatural powers and abilities.