Svyadov climbed an aluminum ladder affixed to the side of the reactor vessel to run the detachable probe from his counter over every welded pipe joint.  The speaker-annunciator on the hand-held box was turned to maximum so that everyone in the compartment could hear it, and Svyadov had an earpiece plugged in for even greater sensitivity.  A youngster of twenty-one, he was nervous.  Only a fool would feel entirely safe looking for a radiation leak.  There is a joke in the Soviet Navy:  How do you tell a sailor from the Northern Fleet?  He glows in the dark.  It had been a good laugh on the beach, but not now.  He knew that he was conducting the search because he was the youngest, least experienced, and most expendable officer.  It was an effort to keep his knees from wobbling as he strained to reach all over and around the reactor piping.

The counter was not entirely silent, and Svyadov's stomach cringed at each click generated by the passage of a random particle through the tube of ionized gas.  Every few seconds his eyes flickered to the dial that measured intensity.  It was well inside the safe range, hardly registering at all.  The reactor vessel was a quadruple-layer design, each layer several centimeters of tough stainless steel.  The three inner spaces were filled with a barium-water mixture, then a barrier of lead, then polyethylene, all designed to prevent the escape of neutrons and gamma particles.  The combination of steel, barium, lead, and plastic successfully contained the dangerous elements of the reaction, allowing only a few degrees of heat to escape, and the dial showed, much to his relief, that the radiation level was less than that on the beach at Sochi.  The highest reading was made next to a light bulb.  This made the lieutenant smile.

"All readings in normal range, comrades," Svyadov reported.

"Start over," Melekhin ordered, "from the beginning."

Twenty minutes later Svyadov, now sweating from the warm air that gathered at the top of the compartment, made an identical report.  He came down awkwardly, his arms and legs tired.

"Have a cigarette," Ramius suggested.  "You did well, Svyadov."

"Thank you, Comrade Captain.  It's warm up there from the lights and the coolant pipes."  The lieutenant handed the counter to Melekhin.  The lower dial showed a cumulative count, well within the safe range.

"Probably some contaminated badges," the chief engineer commented sourly.  "It would not be the first time.  Some joker in the factory or at the yard supply office—something for our friends in the GRU to check into.  'Wreckers!'  A joke like this ought to earn somebody a bullet."