his eye for a moment the sense of an aerosol looking meaningfully at a wasp.

She tried to be very formal and English.

"I'm afraid," she said stiffly, "that you have the advantage of me."

"Yes," said Odin.

He gestured to the orderly, and together they resumed their leisurely passage down the corridor. Glances were exchanged between Standish and the Sister, and then Kate was startled to notice that there was someone else standing in the corridor there with them.

He had not, presumably, appeared there by magic. He had merely stood still when the trolley moved on, and his height, or rather his lack of it, was such that he had simply hitherto been hidden behind it.

Things had been much better when he had been hidden.

There are some people you like immediately, some whom you think you might learn to like in the fullness of time, and some that you simply want to push away from you with a sharp stick. It was instantly apparent into which category, for Kat e, the person of Toe Rag fell. He grinned and stared at her, or rather, appeared to stare at some invisible fly darting round her head.

He ran up, and before she could prevent him, grabbed hold of her right hand in his and shook it wildly up and down.

"I, too, have the advantage of you, Miss Schechter," he said, and gleefully skipped away up the corridor.

The large, serious-looking grey van moved smoothly down the driveway, emerged through the stone gates and dipped sedately as it turned off the gravel and on to the asphalt of the public road. The road was a windy country lane lined with the wintry silhouettes of leafless oaks and dead elms. Grey clouds were piled high as pillows in the sky. The van made its stately progress away down the lane and soon was lost among its further twists and turns.

A few minutes later the yellow Citron made its less stately appearance between the gates. It turned its splayed wheels up on to the camber of the lane and set off at a slow but difficult rate in the same direction.

Kate was rattled.

The last few minutes had been rather unpleasant. Standish was clearly an oddly behaved man at the best of times, but after their encounter with the patient named Odwin, he had turned unequivocally hostile. It was the frightening hosulity of one who was himself frightened - of what, Kate did not know.

Who was she? he had demanded to know. How had she wheedled a refenence out of Alan Franklin, a respected man in the profession? What was she after? What - and this seemed to be the big one - had she done to arouse the disapprobation of Mr Odwin?

She held the car grimly to the road as it negotiated the bends with considerable difficulty and the straight sections with only slightly less. The car had landed her in court on one occasion when one of its front wheels had sailed off on a little expedition of its own and nearly caused an accident. The police witness in court had referred to her beloved Citron as "the alleged car" and the name had subsequently stuck. She was particularly fond of the alleged car for many reasons. If one of its doors, for instance, fell off she could put it back on herself, which is more than you could say for a BMW.

She wondered if she looked as pale and wan as she felt, but the rear-view mirror was rattling around under the seat so she was spared the knowledge.

Standish himself had become quite white and shaky at the very idea of anybody crossing Mr Odwin and had dismissed out of hand Kate's attempts to deny that she knew anything of him at all. If that were the case, he had demanded of her, why then had Mr Odwin made it perfectly clear that he knew her? Was she accusing Mr Odwin of being a liar? If she was then she should have a care for herself.

Kate did not know. The encounter with Mr Odwin was completely inexplicable to her. But she could not deny to herself that the man packed some kind of punch. When he looked at you you stayed looked at. But beneath the disturbing quality of his steady gaze had lain some even more disturbing undercurrents. They were more disturbing because they were undercurrents of weakness and fear.

And as for the other creature. . .

Clearly