Hark! hark! – What mean those yells – those cries?
His chain some furious madman breaks!
He comes! I see his glaring eyes!
Now! now! my dungeon bars he shakes.
Help! Help! He's gone! Oh! fearful woe,
Such screams to hear – such sights to see!
My brain! my brain! – I know, I know
I am not mad, but soon shall be.

"The Captive"; cited from The Life and Correspondence of M. G. Lewis (London: Henry Colburn, 1839) vol. 1, pp. 239-40.