Shrouded in the backyard

I heard it. I have heard it before.
A cry, a wail and a shriek.
An incomprehensible sound it has always been.
It has never lasted for more than a minute.
It isn't from the road, it is from a nearby block.
I thought it was a cat. A woman she was.
I have never seen her but I doubt if I ever will.
Coz I know no lady who lives in the neighbouring backyard.
Was she in distress? Or was it a spell so evil?
I never get answers to these questions repeated.
I would have helped her if only it wasn't so dark.
Well, she always cries at 1:30AM sharp.