Classic Poem

Someone came knocking
At my wee, small door;
Someone came knocking,
I'm sure — sure — sure;
I listened, I opened,
I looked to left and right,
But nought there was a-stirring
In the still, dark night;
Only the busy beetle
Tap-tapping in the wall,
Only from the forest
The screech owl's call,
Only the cricket whistling
While the dewdrops fall,
So I know not who came knocking,
At all, at all, at all.