"The Laws of Probability aided by a bit of sheer guesswork and some shrewd evaluation of the barrister's mind."
Christine smiled. "You can speak plainer than that," she said.
"I know," he replied, reaching for his bag of gear, "but there's a lady present."
"You forget that the lady thought of it," Christine pointed out. "So let's go and find the—barrister."
"It ought to show, though," observed Walt. "And yet, my lady, we can check whether there has been cross-duggery at the skull-roads by making a brief observation along here somewhere."
"How?"
"Well, about fifty yards up this corridor there is a wall-thermostat."
"You think that if Kingman were trying to chill-off the place, he'd have bollixed the thermostats so they can't heat up the place and compensate?"
Walt nodded. "He'd do it, not knowing that we had all the near-by circuits shut off for our own experiment, no doubt."
"You don't suppose Kingman knew about this idea and decided to add to the general effect?" asked Christine.