It seemed to open pathways into that world of their desire, on the boundaries of which they were forever treading; yet forever vainly, because they had not the passwords, and in their ignorance could only guess that miracles lay beyond, sealed, unimaginable.
"Major Vigoureux"
A. T. Quiller-Couch
I told myself that I was growing absurd and getting passwords on the brain.
"The Man From the Clouds"
J. Storer Clouston
I don't doubt that for weeks before then everyone who entered the place had been observed, but the photographs linked them up with the actual men into whose hands the 'Actor's' old keys had passed-gave their names and addresses, the numbers of their safes, their passwords and signatures.
"Max Carrados"
Ernest Bramah