Shirley was aware of a pulse that throbbed in her throat. The pavilion, waiting for her amongst the trees, looked deserted and strangely forbidding. She had an instinct to tiptoe away from it, and for several moments she stood in the shadow of the trees staring at the quiet building with a queer sense of foreboding hammering at her brain.

She stood so still that her very heartbeats seemed to thud in the silence. Somewhere not far distant the unmistakable cry of a pheasant broke the dead calm, and she heard the whirr of wings. She jumped uncontrollably and waited, listening. No other sound succeeded the startled bird's flight; she decided, but uneasily, that some prowling fox had disturbed the pheasant.

She drew the gun out of her pocket and cocked it. The snap of the breech sounded comfortingly in her ears; she thumbed the safety-catch up and walked quietly toward the pavilion.

The door was not locked; the handle squeaked nastily as she turned it. She pushed the door inwards, standing backed against the wall. After a moment, since not the tiniest sound came to betray the presence of any living creature, she pulled her torch out of her pocket and switched it on.

The pavilion was empty. Some garden furniture was placed in it, wicker chairs and a table, several gaily coloured boating cushions. Shirley's torch travelled slowly round it, lighting every corner. She went in, closing the door behind her, and forced herself to sit down in one of the chairs and to switch off the torch.

As her eyes grew accustomed to the dim light she was able to distinguish, vaguely, the various objects in the room. The warning instinct that had urged her not to approach the pavilion prompted her to draw her chair back to the wall. The windows, grey oblongs in the darkness, seemed to be all round her. She had to assure herself that no one could see her from outside without the aid of a lamp.

She could hear her watch ticking and pulled down her glove to look at it. The luminous hands stood at twenty minutes past six; Collins was late. A fear that he might be going to play her false dispelled for a moment her growing sense of foreboding, Her lips tightened; she began to listen for the sound of an approach-footstep.

She heard nothing, not so much as the snap of a twig, until the scrape of the door-handle made her heart give a frightened jump. She got up, pressing down the safetycatch of her gun.

A man stood in the doorway; she could not distinguish his features. She waited, hardly breathing.

"Are you there, miss?" The words were spoken so softly that she barely heard them. The voice was the valet's.