“They have implied it,” returned the physician promptly.
“They are correct in that implication,” said the stranger. “I suppose then that their reason lies in the fact that the system of the code is entirely unique.”
“That is certainly the reason.”
“It is not a good reason. The solution of any code is within the realm of possibility — even though its system is entirely new.”
“Then the code can be solved?” There was sudden hope in Doctor Lukens’ voice.
“No.”
“Why not?”
“A code,” said the man in black, “is a message transcribed into some ingenious system of lettering or characters. Am I correct?”
“Certainly,” agreed Doctor Lukens.
“Then this is not a code!”