The gateway

It was like every normal day in their lives, the world was just okay to them until the clear beautiful vast sky gradually turned dark as winged creatures filled the whole sky like moths to a light that was just the beginning of what was about to happen as the invasion began ...and the world ended but the ending of the world is just the beginning...
One hundred and thirty seven years later the world continues to thrive but danger looms behind it is up to the new generation to save the human race from extinction from the dragons or from themselves?