"Like a code," Crowley theorizes. "Or a password."

He thinks of the many spy movies he and Aziraphale watched in the 1960's. How spies were woken up by a series of words said in a certain order. Is this like that, or is that just another piece of movie magic?

"We'll figure it out," he promises. "Besides, they can't get you here, remember. You're out of their reach."