On nights and days whither safe harbor lured,
What bait had been i' the name to ope the door?
The promise of a letter? Stealthy guests
Have secret watchwords, private entrances:
The man's own self might have been found inside
And all the scheme made frustrate by a word.
No: but since Guido knew, none knew so well,
The man had never since returned to Rome
Nor seen the wife's face more than villa's front,
So, could not be at hand to warn or save,—