The orchestra was playing a waltz. Chavasse lit a cigarette and leaned against a pillar. It was a splendid scene, the crystal chandeliers taking light to every corner of the cream-and-gold ballroom, reflected again and again in the mirrored walls.

Beautiful women, handsome men, dress uniforms, the scarlet and purple of church dignitaries – it was all strangely archaic, as if somehow the mirrors were reflecting a dim memory of long ago, dancers turning endlessly to faint music.

He looked across to the Chinese and, for a brief instant, the white face of Chou En-lai seemed to jump out of the crowd, the eyes fastening on his. He nodded slightly as if they knew each other and the eyes seemed to say: All these are doomed – this is my hour and you and I know it.

Chavasse shivered and, for no accountable reason, a wave of grayness ran through him. It was as if some sixth sense, that mystical element common to all ancient races, inherited from his Breton father, were trying to warn him of danger.

The moment passed, the dancers swirled on. He was tired, that was the trouble. Four days on the run with no more than a couple of hours of uneasy sleep snatched when it was safe. He lit another cigarette and examined himself in the mirror on the wall.

The dark evening clothes were tailored to perfection, outlining good shoulders and a muscular frame, but the skin was drawn too tightly over the high cheekbones that were a heritage from his French father, and there were dark circles under the eyes.

What you need is a drink, he told himself, and, behind him in the mirror, a young girl came in from the terrace through the French windows.

Chavasse turned slowly. Her eyes were set too far apart, the mouth too generous. Her dark hair hung loosely to her shoulders and the white silk dress was simplicity itself. She wore no accessories. None were needed. Like all great beauties, she wasn’t beautiful, but it didn’t matter a damn. She made every other woman in the room seem insignificant.