To think his vanishing unnatural:
Doors there were many, through which, by the laws
Of physics, bodies whether short or tall
Might come or go; but Juan could not state
Through which the Spectre seemed to evaporate.
XXV.
He stood—how long he knew not, but it seemed
An age—expectant, powerless, with his eyes
Strained on the spot where first the figure gleamed
Then by degrees recalled his energies,