Then I heard a sound, I look again and see the eye of something (a crow maybe?) and the door open, and there were nothing.
That reminds me of The Raven:
But the fact is I was napping, and so gently you came rapping,
And so faintly you came tapping, tapping at my chamber door,
That I scarce was sure I heard you"—here I opened wide the door;—
Darkness there and nothing more.