Sense Sonnet - Chiller

Coming Through

The valley was a place of lore,
That native inhabitants knew
From time to time became a door.
Creatures attempted to come through.
Flashings of lights would then become
Beings about the shape and size
Of humans; but for sure not from
This Earth. Large heads with big red eyes,
Looking for the possible way
Not to explode into thin air,
But to find the secret to stay.
So far no creature survived there.

E.T.s coming to wish us well?
Or demons bringing bad from hell?