Black Cross by Greg Iles

inside the mansion, who finally passed the decoded signals to the synod of dons and scholars responsible for piecing together a picture of what was happening in the darkness that lay across the Continent.
    Tonight Brigadier Duff Smith had driven his Bentley at alarming speeds to reach Bletchley. He could have phoned, but he wanted to be there when — or if — the message he awaited came in. Smith had stood at the shoulder of a young rating from Newcastle for an hour, watching a silent radio receiver until nervous tension got the better of him. He was about to give up and drive back to London when a staccato of Morse dots and dashes filled the tiny room.
    “That’s him, sir,” said the rating with controlled excitement. “PLATO. I don’t even need to hear his identifying group. I know his fist like Ellington’s piano.”
    Brigadier Smith watched the young man copy down the groups as they came through. They came in three short sets. When the radio fell silent, the rating looked up with a puzzled expression.
    “That’s it, sir?”
    “I won’t know until you decode it. How long were they on the air, Clapham?”
    “I’d say about fifty-five seconds, sir. Plays that Morse key like a musician, PLATO does. A bloody artist.”
    Smith looked at his watch. “I make it fifty-eight seconds. Good show. The Poles are the best at this game, bar none. Decode that lot right now.”
    “Right, sir.”
    One minute later, the rating tore off a sheet of notepaper and handed it to the SOE chief. Smith read what he had written:
     
    Wrapped steel winch cable, due to copper shortage.
Diameter 1.7 cm. Ten pylons. 609 meters.
Slope 29 degrees. 6 wires. 3 live, 3 dead.
     
    Brigadier Smith laid the notepaper on a table and pulled a different sheet from his pocket. He consulted some figures that had been scrawled there earlier in the week by a brilliant British engineer. The rating saw the brigadier’s hand stiffen, then crumple the sheet of paper in his hand.
    “By God, it could work,” Smith said softly. “That woman is gold in the bank. It could work .” He carefully placed both pieces of paper in the inside pocket of his jacket, then took his cap from the table. “Good work, Clapham.”
    Smith laid a hand on the rating’s shoulder and said, “From now on, all transmissions from source PLATO will be passed under the name SCARLETT. SCARLETT with two ‘T’s.”
    “As in Gone With the Wind , sir?”
    “Right.”
    “Noted.” The young rating grinned. “Nice to know the Jerries are short of a few things too, eh?”
    Duff Smith paused at the door and looked back thoughtfully. “They’ll never know what that missing copper cost them, Clapham.”

 
    8
     
    It was late afternoon in London when Brigadier Smith’s silver Bentley rolled onto the A-40 and headed for Oxford. Smith was driving himself today, making use of an ingenious shift mechanism designed for him by SOE engineers. Jonas Stern sat beside him, studying a topographic map of Mecklenburg, the northernmost province of Germany.
    “I remember it all,” he said excitedly. “Every road, every brook. Brigadier, the target has to be Totenhausen.”
    “Be patient, lad.”
    “I don’t see the concentration camp marked here.”
    “I told you, Totenhausen isn’t like any camp you’ve ever heard of. It’s strictly a laboratory and testing facility. Compared to a place like Buchenwald, it’s minuscule. The SS let the trees grow right up to the electric fence. You need a larger scale map. Himmler is serious about hiding that camp.”
    Brigadier Smith had not worn his uniform today. He looked professorial in a tweed jacket and stalker’s cap. “Listen,” he said, “I’ve changed my mind about this meeting.”
    “What do you mean?”
    “I mean I don’t want you to say anything unless I ask you to.”
    “Why not?”
    Smith looked away from the road long enough to let Stern know he meant what he was about to say. “Dr. McConnell is not like most men. He’s too