Here there be Monsters

Was the terrifying Flatwoods Monster an alien creature whose spaceship crashed on a rugged mountaintop in West Virginia? Or as the experts decided merely a meteorite streaking across the night sky?
Was the Mothman a benign apparition sent to warn of the impending collapse of the Silver Bridge or was it an arcane flying creature as the frightened citizens who reported hundreds of sightings to the authorities described it.

Both creatures disappeared as mysteriously as they appeared, never to be seen again... are they gone forever... or do they still lurk in the forested depths of North America's oldest mountain range?