She was making up her mind to go down to the water's edge in search of a little freshness to cool the fever that burned in her and had actually begun to reach for her clothes, although still without taking her eyes from the river, when she saw walking by the very man who filled her thoughts.

Jason was strolling down towards the gleaming water, his hands clasped behind his back in that familiar attitude of his as he paced his quarterdeck. And Marianne smiled suddenly, relieved to know that he too had been unable to sleep. It filled her with tenderness to think that he had been fighting the same battle with his pride as she had with hers. Jason had never found it easy to extricate himself from a situation of this kind. She had only to humble herself a very little and she would have no trouble in bringing him back to her.

She was on the point of rushing from the room when, all at once, she saw Shankala.

The gipsy girl was evidently following Jason. Making no more sound than a cat in her bare feet, she was running as lightly as a ghost after the man who drew her and who had clearly no suspicion of her presence there.

Marianne, in the darkness of her room, felt her cheeks flush with sudden anger. She had had more than enough of this woman. She had not yet exchanged a single word with her and yet her silent presence oppressed her like a nightmare. Through all the long miles they had travelled together in the enforced proximity of the kibitka, the gipsy's black eyes had remained fixed on one of two points: on the white ribbon of the road ahead, at which she would gaze tirelessly for hours on end as though searching for something, or on Jason to whom she would turn from time to time with a smile lurking in her eyes. The look on her face as she moistened her red lips with the tip of a pointed tongue made Marianne long to hit her.

Jason strolled on slowly until he was hidden behind one of the piles of logs which lined the waterside beyond the narrow strip of quay. At Kiev, the steppes came to a sudden end and gave way to the great forests whose produce was piled beside the waterway that would carry it south.

Shankala, however, instead of following Jason, had turned aside and was taking a parallel path on the nearer side of the heaped-up logs. Marianne, observing her eagerly, saw her set off at a run towards the rising ground which marked the end of the river harbour. The gipsy's intention was clear. She meant to meet Jason coming the other way.

Unable to stay where she was a moment longer and impelled by a curiosity she could not control, Marianne left the inn in her turn and hurried down to the river. Jealousy, a primitive instinct, drove her after Jason, a jealousy she could not have justified or explained. She only knew that she wanted to see what Jason would do when he came face to face alone with the woman who had made no secret of her intentions towards him.

Rounding the first log pile and coming to the river she saw nothing at all, for a curve in its course hid everything beyond. Her feet made no sound on the close-packed sand and she began to run. But when she reached the bend she clapped a hand to her mouth to stifle an exclamation and shrank back into the deep shadows between two piles of logs.

Jason was there, a few yards away from her. He had his back to her and standing facing him was Shankala. She had let fall her dress and was standing naked before him in the moonlight.

Marianne's throat felt dry. The witch was beautiful beyond a doubt. With the moon's rays silvering her brown skin she looked like a water sprite emerging from the shining river and born of its substance. Her arms hung loose at her slender sides, palms outward, her head was flung slightly backward, the eyes half-closed, and she stood quite still, allowing a sensuality so powerful as to be an almost palpable thing to work its own magic. Only the slight quickening of her breath, the rhythmic heaving of her heavy, round yet perfect breasts, betrayed her desire for the man before her. Her attitude was precisely that of the statue of Dona Lucinda in the temple at the Villa Sant'Anna and Marianne almost cried out at the resemblance.

Jason, too, seemed turned to stone. From her hiding place, Marianne could not see the expression on his face but the total stillness of his body clearly betrayed a kind of fascination. Marianne felt weak and red lights danced before her eyes. She was forced to lean back against the rough tree trunks, incapable of taking her eyes from the scene that held them yet longing desperately to sink into the water if Jason yielded to temptation. The silence and the stillness seemed to last for ever.

Suddenly Shankala moved. She took a step towards Jason, then another. Her eyes were gleaming and Marianne, in torment, dug her nails into the palms of her hands. The woman's panting breath filled her ears like a rushing wind. She was moving closer to the man who even now had not moved. One step… and one more. She was about to touch him, to cling to him with that form whose very walk was vibrant with desire. Her lips were slightly parted, showing the small, sharp, carnivorous teeth. Marianne wanted to cry out in terror but no sound came from her throat, she was paralysed with shock. In another instant the love of her life would crumble at her feet, like a god with feet of day.

But Jason had stepped back. His outstretched arm touched the woman's shoulder and held her at a distance.

'No,' he said.

Then, with a shrug of his shoulders, he turned away and strode swiftly in the direction of the inn, unaware of Marianne still clinging to the piled logs in her shadowed corner, weak and spent, yet filled with a relief so shattering that she almost swooned with it. For a long moment she stayed where she was, her forehead drenched with sweat, her eyes closed, listening to the frantic drumming of her heart return to normal.

When she opened her eyes again the river bank was deserted so that for a moment she wondered if she had not dreamed it all, but when she looked more closely she could just make out a running figure moving away towards the point where the bank became a cliff. Then she too turned back towards the inn. Her legs were trembling so that she could barely climb the steep wooden stair that led up to the bedrooms and at the top she had to pause for a moment to get back her breath before she dragged herself to her own door and pushed it open.

'Where have you been?' Jason's voice said curtly.

He was there, standing in the broad, white swathe of moonlight. She thought that he looked huge and reassuring, like a lighthouse in a storm. Never had she needed him so much and giving a little moan she threw herself into his arms, shaken by a paroxysm of sobbing that swept away all the dreadful fear that had overwhelmed her.

He let her cry for a little without speaking, only petting her like a child and stroking her tumbled hair with a gentle hand. Then, as the violence abated, he put his hand under her chin and tilted up her tear-stained face.

'Idiot,' was all he said. 'As if I could want any woman but you.'

An hour later Marianne was asleep, tired out and lulled by the happy thought that Shankala, having failed, would give up the attempt and must already have made up her mind to part from her travelling companions. She had seen her running off towards the cliff… Perhaps she meant never to return…

But when, at daybreak, they all gathered by the kibitka, into the shafts of which their new driver was engaged in putting fresh horses, the gipsy was there, as cool and distant as if nothing at all had happened. Without a word she took her place by Gracchus on the box and Marianne, smothering a sigh of disappointment, could only comfort herself with the thought that Shankala had not so much as glanced at Jason as she passed him.

This was such slender consolation that when they drew up that evening at Darnitsa, in the midst of resin-scented pinewoods, she could not resist taking Gracchus aside. His relations with the gipsy had not notably improved since the village on the Kodyma but at least the extraordinary girl had condescended to exchange a few words with her so-called husband.

'How long are we to be forced to endure this Shankala?' Marianne asked him. 'Why does she stay with us? It's clear she doesn't do it because she likes us. So why does she persist in staying?'

'She is not staying with us, Mademoiselle Marianne, or not in the way you mean.'

'No? Then what is she doing?'

'She's hunting!'

'Hunting?'

'I can't imagine what kind of game – apart from Monsieur Beaufort, of course.' Marianne could not resist that jibe at least.

She had expected him to agree with her in that, but Gracchus shook his head, frowning.

'I thought so too, at first, but it's not that. Oh, she'd have got him if she could, of course, combining pleasure with business—'

'Business? I understand less and less.'

'You'll soon see. What Shankala is after is revenge. She's not coming with us, she's following the man who cast her off and delivered her up to the hatred of the village women. She has sworn to kill him and I think she hoped, by seducing Captain Beaufort, to make him the instrument of her revenge by persuading him to kill her former husband.'

Marianne shrugged impatiently. "This is madness. How does she hope to find the man again in a country this size?'

'That may not be as difficult as you might think. The cossack, whose name, by the way, is Nikita, has gone off to fight the French. We are going the same way, and so she knows. Don't worry, she asks about the cossack troop at every posting house. Not only that, but she knows precisely what her Nikita is after.'