‘ Jesus.’
‘Someone must have taken it back in 1945. The SS man tangled up with Mayne was dressed in camp inmate clothing, as if he were in disguise, like the SS who tried to flee from Belsen and other camps that way. He may have been lurking near the bunker to keep prying eyes out, waiting for instructions. There may have been another with him, someone who got into that refrigerator and removed it.’
‘If they were planning to take it anywhere more secure in those final weeks of the war, it would have to be towards the shrinking Nazi perimeter around Berlin.’
Hiebermeyer peered at him. ‘That’s the real reason I wanted you in Germany.’
Jack raised his eyebrows. ‘Berlin?’
‘I have an old friend who spends his free time with the Berlin Second World War archaeology group, exploring underground bunkers and tunnels of the Second World War in Berlin. When I knew I was coming to Germany, I called him on the off-chance. He told me about something they’d found just south of the Tiergarten at the site of one of the biggest bunkers of them all, the Zoo flak tower. I said I’d try to get there after this. And now because of something else we found in the bunker this morning, it’s become imperative.’
‘Go on.’
‘My friend in Berlin discovered a buried corridor that had once been under the tower. He found a door with a symbol deeply impressed in it, a reverse swastika within a roundel. And there’s something about the bunker I haven’t told you yet. Major Penn’s men also found a reverse swastika impressed within a roundel, concealed under a sliding panel on the door into the laboratory. Penn measured the impression of the swastika in the straw in the crate full of Schliemann’s treasures. It was the same dimensions and shape as the swastika in the door. And there’s more. The lock was embedded with a strong magnetic device, producing a very unusual signature. We think the palladion was magnetic; the ancient Trojan story that it had fallen from heaven, a meteorite? Whoever opened up that chamber of horrors used the sacred symbol of ancient Troy as a magnetic key.’
‘Good God,’ Jack whispered. ‘And you think it’s the same at the Berlin site?’
‘I phoned my friend in Berlin while you were on the way here. He said he hadn’t thought to mention it before, but the magnetic pull around the swastika symbol on the door in the tunnel was enough to lock his torch against the metal.’
Jack’s mind raced. ‘If that’s the only lead we’ve got to go on, we need to jump on it. Remember there are still eyes watching this place. If Saumerre knew about this bunker, then he might know about Berlin too. Do we need an IMU excavation team? I can have people in Berlin by tomorrow morning.’
Hiebermeyer peered at him. ‘It turns out that beneath the Zoo tower there was a huge reservoir, designed to keep the tower self-sufficient. That’s why you need to be with me, Jack, you and Costas and your diving gear. The tunnel leads underwater.’
Jack held his breath, and then exhaled hard. He looked at the forest edge, squinting against the sun that was breaking through the mist. He knew that his only course of action now was to deploy all of his energy and resources to see this through. Somewhere out there was a weapon of unimaginable horror, and they might have the only clues to discovering it. He gave Hiebermeyer a steely look. ‘You should get back to Aysha. I can take over from now on.’
Hiebermeyer put a hand on his shoulder again. ‘I promised Costas I’d stay with you, and I’ll do so until he arrives. The buddy system, he calls it.’
Jack hesitated for a moment, then relented. ‘I guess we’ll make a diver of you yet.’
‘After that place?’ Hiebermeyer looked towards the bunker. ‘Not a chance. That’s the last time I put on any kind of suit.’ He took his hand down. ‘Seriously, Jack. Costas told me everything that happened in the salt mine in Poland last year, when you were searching for the palladion. About your killing spree. We just want to make sure you’re in control.’
‘Those were Saumerre’s thugs, and they’d kidnapped my daughter. I’d do it again without a moment’s hesitation. Saumerre’s still out there, and it’s unfinished business. I want to bring him down.’
‘We need to tread carefully. We need to maintain the balancing act you set up with Saumerre six months ago after your showdown with his men at Troy. He knows that his position in the European Union bureaucracy in Brussels depends on you keeping quiet about his underworld background. One word from you and he’d lose everything that allows him to operate freely across Europe. He wants whatever was inside that bunker, what’s gone missing. Remember our briefing by the security people after you’d got your MI6 contact on the case? They think he’s dangled the possibility of a Nazi wonder-weapon in front of his terrorist customers. Imagine it: the biggest underworld deal of all time, far bigger than the old Soviet fissile materials that MI6 suspects he’s been feeding them for dirty bombs. It’s been quiet recently on the international terrorist front. The big boys are biding their time, because they’re expecting a delivery. But Saumerre knows that if we rumble him and he loses his credibility, he becomes a liability to them. If that happens, you may not even need to take him down. But we have to keep playing the game of bluff and counter-bluff as long as possible, to let him think we’ve found what he wanted in the bunker.’
‘If we had found it, the game would be over for him. He’d know he could never get his hands on it. And that’s when he’d become a liability for us. He’d assume we’d be about to blow his cover, and he’d have nothing to lose. He’d do everything he could to take us down with him.’
‘Or he could play a game of bluff with us.’
‘You mean take a risk that we were bluffing about having the weapon, and try to convince us that in fact he had somehow got hold of it? He could threaten to use it himself, but the bluff would last only as long as it took for his terrorist customers to realize he was stringing them along as well.’
Hiebermeyer took a deep breath. ‘There is something else. Jack. Just a slight concern I’ve had, and it’s been growing as I’ve been sitting out here thinking about the last few hours. Being in that bunker was a nightmare, and I’m only getting my thoughts straight now. It was a niggle, but now it’s become a worry. If Saumerre did claim he had the weapon, there’s just a chance he might not be bluffing.’
‘What on earth do you mean?’
Hiebermeyer paused. ‘Major Penn’s operation is impressively tight, but there was one chink in the armour. They work in two-person teams. This morning things went slightly awry because one of Penn’s men, a Sergeant Jones, collapsed in that inner chamber and we had to take him out. It’s a big concern, because he’s still not regained consciousness, but the doctor is with him now inside the bunker. Apart from me, the only one inside that chamber this morning who wasn’t one of Penn’s team was the man paired with Sergeant Jones – a European Union Health and Safety inspector named Auxelle. He’d foisted himself on Penn yesterday, arriving at the perimeter roadblock in an EU limousine with a police motorcycle escort. By all accounts he was arrogant and pompous, but Penn had him checked out by MI6 before letting him in and there seemed to be no question over his credibility. He came with the highest EU authority.’
Jack turned to Hiebermeyer in alarm. ‘The highest authority in Brussels? Who was his line manager?’
‘That’s what I’ve just been wondering. I have a horrible feeling that one of Saumerre’s departments might be Health and Safety.’
‘ Shit,’ Jack exclaimed. ‘But there’s no chance of this man having removed anything from the bunker?’
‘Everyone is body-searched before leaving the double-lock chamber at the entrance, to make sure that they haven’t inadvertently got material on them from inside that might be contaminated. Each one of a pair is responsible for checking the other. But Sergeant Jones was down, and he was Dr Auxelle’s partner. In the concern to get Jones out of the laboratory chamber and attended to by the medic, there might have been a slip-up. What worries me is that we’re probably only talking about a test tube or a phial, very easily concealed in one of those suits. And Major Penn was completely preoccupied with Jones. They’ve worked together in a lot of bad places.’
Jack looked at Hiebermeyer intently. ‘Do you remember anything else about that laboratory? Anything odd?’
Hiebermeyer looked down and then nodded, putting his hand up to his forehead. ‘Something was lurking in the back of my mind, and I’ve just realized what it was. You remember I said the safe was open? All I could think about at the time – all I could think about until just now – was that whatever had been inside was gone. But there was something else. It should have rung a huge alarm bell at the time, but I wasn’t thinking straight. I’d just been stumbling over dead bodies. I should have held the reins tighter. Poor show, as your dad would have said.’
‘I’d probably have been worse,’ Jack said. ‘I’m not used to being in tombs full of corpses, like you.’
‘It was the interior of that refrigerator safe, visible because the door was open. Everything else in the bunker
