the line. The two army officers looked at each other, but then Kessler’s voice came over the speaker.
‘I’m flattered my old friend, but I cannot come.’
‘What are we to do?’ Einstein looked lost.
‘Can you elaborate, Albert?’
Einstein peered up at the ceiling and took a deep breath. ‘There is something missing in my equations. I wish I knew what it was, but, although on paper the theory seems to be without
fault, it will not translate into practice.’
‘Can you say what happened with the test?’
Einstein looked at the two men. Oakland shook his head.
‘Unfortunately . . .’
‘Very well. You had the juice?’ Kessler asked, using one of the code words they had developed when they were young post-docs working together in Berlin.
‘The juice flowed, reached its destination.’
‘And the green balloon went up?’
‘It did.’
‘My God, Albert!’
‘That is where it deviated from the ideal, let us say.’
‘Look, Albert. I will do all I can to help you. This work is important, not just to you and your friends.’
Einstein gazed at Oakland and Gaynor. They were far from being friends to him and all three men knew it.
‘But how, Johannes?’
‘I’ve not been entirely idle, old friend. I have been giving our old ideas a lot of thought recently. I could send you my work.’
‘Too dangerous, Johannes. It could fall into the wrong hands.’
Kessler fell silent again.
‘Unless,’ Einstein said. ‘This is just an idea. Could you encode the work?’
Kessler cleared his throat. ‘Well, yes, yes, I could.’
‘Then that would be the best option other than you being here in person.’
‘It would have to be as unbreakable a code as possible.’
‘I’m sure you could manage that,’ Einstein answered.
‘What about the cipher? How will you . . .?’
‘We can sort that out.’ Einstein glanced at Major Oakland, who gave his colleague a brief questioning look then nodded to the professor.
‘Very well. What next?’
Oakland caught Einstein’s eye and tapped his watch.
‘Johannes, time is running out. We will get instructions to you.’
‘Very well,’ Kessler said again. ‘I will await—’
‘Johannes? Johannes?’ Einstein pulled the phone away from his ear and stared at it. The line was dead.
8
The two army officers, Major Peter Oakland and Captain Hugh Gaynor, walked along the path from the door to Albert Einstein’s home at 112 Mercer Street and opened the gate
onto the pavement, where their car was waiting. A young private was at the wheel. He jumped out and opened the back door for the men to enter, snapping to attention as they shuffled in.
It was a bleak, cold afternoon, rain clouds tumbling in from the east. Oakland offered Gaynor a cigarette and lit one himself, drawing on it hungrily. Keeping it perched between his lips, he
lifted his briefcase from between his feet and pulled a Manila file from inside, snapped the bag closed and returned it to the floor. Flicking his ash into the tray on the back of the
driver’s seat, Oakland passed the file over to Gaynor.
‘You can keep this,’ he said. ‘They’re carbons.’
Gaynor looked at the blue single-spaced type.
‘It’s everything we have on Johannes Kessler.’
Captain Gaynor read through the first couple of pages. Oakland gave him a running commentary.
‘A super brain, apparently. Gives old Albert a run for his money, some say. Kessler and Einstein were close colleagues in Berlin. Einstein was director of the Kaiser Wilhelm Institute for
Physics. Kessler is ten years younger, but he was one of Einstein’s top people there. They did a lot of work together; nothing published, but fellow scientists have talked about what close
friends they were and that between them they cooked up some amazing ideas.’
‘I see.’ Gaynor looked up from the file. ‘But Kessler has no intention of leaving Germany?’
‘He’s not Jewish, Hugh. And is highly regarded by the Nazis. But he has made it very