What is this that I have heard?
Scurrying rat or stirring bird?
Scratching in the wall of sleep?
Twitching on the eaves of sleep?
I can hear it working close
Through a space along the house,
Through a space obscure and thin.
Night is swiftly running out,
Dawn has yet to ripple in,
Dawn has yet to clear the doubt,—
Rat within or bird without.