'There's nothing for it, Salvador. Fate, destiny, demands we go!'

'Steady, steady. What're you talking about?'

Pantaleon spread the newspaper on the desk. It was an edition of Le Figaro, about five weeks old. Pantaleon pointed to an announcement on page seven, published by 'Le Jury du Prix Amberway-Richault'.

'My French isn't good enough. Anyway, this is a bit out of date isn't it?'

'I know. And as a subscriber and competitor I'm meant to be kept fully informed. But who cares about "some fool in the Philippines ". It's just as well I get these newspapers sent out. Everything could have been lost, ruined.'

He calmed himself and began to translate. 'Listen: "A spectacular concurrence, aerial concurrence-aerial challenge – for the Amberway-Richault prize is scheduled to take place in the Bois de Boulogne on thirtieth May 1903…" Something about the rules. Ah… "four flying machines are to participate…" this is the important bit, "with the expected participation of Monsieur Ferdinand Ferber and his Ferber no.6…" Then there's a list of the other flyers: Cody, Karl Jatho, Levavasseur. Unbelievable, isn't it?'

'I don't follow, Panta, what -'

'That's the prize I'm trying to win.'

'I know that.'

'Well, I've got to do it now, haven't I? Before the thirtieth. I've calculated. I have to allow myself time to cable to Paris. Confirmation of witnesses, photographers, etcetera. Any day between now and the twenty-first should be enough.' He smiled, seizing Carriscant's arm. 'Can you imagine them in Paris, Salvador? – "News has just arrived from the Philippine Islands that, in a fully validated aerial trip, Dr Pantaleon Quiroga is the winner of the Amberway-Richault prize." Can you imagine the effect of that? A bombshell. Cataclysmic!'

'Well, yes, if you can manage, but I don't see -'

The grip on Carriscant's arm grew tighter. 'We're going to do it, Salvador. You and me. Some final preparations and the minute we get a pause in the wretched rain we go.'

'No, no, no. I told you, Panta. I'm not going up in that thing.' He laughed. 'Get one of your other friends.'

Pantaleon's face had frozen, his mouth slightly open, and Carriscant saw his body visibly tense. 'No, Salvador,' he said in a quiet voice. 'I told you already. I can't trust anyone else. The Aero-mobile will be ready in a few days. I think we could make the attempt as early as the thirteenth, weather permitting. It'll be perfectly safe.'

'No, Panta, I'm not doing it.' Carriscant had heard the neurotic edge of madness in Pantaleon's voice. The man's obsession had driven out all reason. He spoke firmly, giving him no option for a misinterpretation. 'I won't do it. I'll help all I can. But I won't go up.'

Pantaleon looked at him, bitterly, miserably, his jaws clenched tight, the fingers of one hand tapping a coat button, one after the other.

'Please don't make me remind you of your obligation to me,' Pantaleon said. 'I've been determined from the outset that it should be the two of us. All the design calculations have been based on your weight. The precision is vital. And you know exactly what has to be done.'

'Panta, you could teach a child of ten what to do in one hour. This insistence on me being the partner is nonsensical.'

'Then why did you allow me to believe you would help?'

'I never said I would.'

'You never said you wouldn't. You went along with it. Allowed me to believe you would be there.'

'Because I like you, that's why. I never thought for one second we'd get to this stage. I didn't want to be harsh. I thought it was just a harmless pastime for you, a toy -'

'A toy?' He was furious now, Carriscant saw. He had gone far too far.

'I'm sorry. I never realised it was so important to you.'

'What about your obligation to me?'

'What obligation, for heaven's sake?'

'It's thanks to me that you've achieved everything. Without me you're no better than that butcher Cruz. It's my skill that has allowed you to flourish.'

Carriscant could not believe what he was hearing. What delusions were these? What fantasies were being aired now? He felt his own anger rise in him at this preposterous claim.

'What are you talking about? Are you mad?'

'You cut and you sew, you cut and you sew, that's all. Nothing more than the skills of a competent tailor. All the magic lies in anaesthesia. Without that enchanted sleep you'd still be barbers' assistants, sawbones, killing people.'

'Enchanted sleep? Enchanted sleep?' Carriscant felt his spine stiffen with a keening intense rage. He'd never heard such nonsense: the self-deluding dreams of a disappointed man. 'You're out of your mind. You're just a chemist. You mix your potions and drip them on a gauze mask. How dare you spout such disgusting nonsense. For the sake of our friendship I'll forget I heard this. But never, ever, talk to me like this again.'

He turned away from him, shocked, deeply offended. The man was lost.

'You don't accept you owe me anything.'

'Nothing more than would exist between colleagues.' He turned back to face him, furious. 'What do you owe me, come to that? How do you think you paid for your precious flying machine, your barn, your wooden roadway? Thanks to the fees you earn because you work for Salvador Carriscant!' His voice had risen to a shout. His whole body was in spasm, his fists clenched tight. They faced each other, their faces ugly with pride and resentment. It was astonishing how a friendship of years could dissolve within seconds, Carriscant thought, vanish like a chimera. He felt desperately unhappy and profoundly ill at ease. He dragged his fingers down his cheeks. This had to be stopped now, before all ground was irrevocably lost.

'Panta, this is terribly wrong. Let's not ruin -'

'What about your other obligations to me?' His voice was implacable, unmoved.

'What obligations, for pity's sake?'

'That I let you and your concubine fornicate in my bed.'

'Oh for God's sake be a man, Pantaleon!'

'If you don't partner me in the Aero-mobile I will be obliged to inform Colonel Sieverance of his wife's infidelity. And with whom.'

The absurd formality of the expressions made the appalling threat all too real. Carriscant felt an awful, debilitating fear spread through him, weakening him, infecting him with a terrifying uncertainty about everything he had regarded as safe and secure. He walked to the dark window, and looked out at the garden, seeing only his own shadowed, blinking, demoralised reflection staring back.

'Under those circumstances, I agree.'

'Good, excellent!' Pantaleon's voice was vibrant again, all his old enthusiasm returned at once. Carriscant turned slowly, incredulous. Pantaleon strode across the room to him, beaming, a hand extended. Not thinking, Carriscant meekly accepted it.

'I'm so pleased, Salvador, so pleased. We'll never mention this horrid business again. Everything is perfect now, as it was meant to be.'

He was still shaking Carriscant's hand. 'You'll see, my friend, this prize will make your name live for ever.