"It worked all right," whispered the man at Ernol's right, as the boy was lined up. Ernol only nodded slightly, keeping his eyes fixed upon the door. A moment later, the elder Ernol arrived, accompanied by a man whom the doctor instantly recognized.
It was Eklan Norbith, the man whose infernally ingenious use of the clock's pendulum had wrung the truth about the secret photographs from the boy's father. He looked even more cruel and repellant now, than he had that night on the couch. Apparently quite recovered, he made a truly forbidding figure.
He had evidently been sent for by the warden; for, with a slow, malignant stare at the row of prisoners, he stated the case in his heavy, ominous tones:
"You are all supposed to know the rules. One of you has been smuggling drugs into the prison; we have found specimens in each cell. It only remains to learn which of you is the guilty party; and that, I propose to uncover within one minute!"
He paused, and glared around again. The stillness was unbroken for a moment; then one prisoner coughed nervously. This started half the rest to doing the same; and under cover of the noise, Ernol whispered to the man on his right:
"No sight of him yet! I'm afraid you showed the drug too soon."
"I waited until I heard the clock strike," protested the other; and then both stood on their guard as the commission's deputy went on with his arraignment:
"It is my duty to inform you, although you probably already know it, that this building is made of iron. Floor, walls, and ceiling are the same." The doctor saw that the prisoners' feet were all bare. "And the whole place is heavily wired with high-power electricity!
"The guards and I will now leave you to yourselves." His teeth showed in an evil smile. "We will give you a few kilowatts as a starter, and shut it off after ten seconds. If you are not ready by that time to tell me which of you is guilty, I will then let you have the current twice as strong!"
The prisoners looked at each other anxiously. Ernol threw back his head defiantly.