She tried to sit up, but she was obviously on the point of collapse. Mr. Hurn pushed his way to her side. From another pill-box which he had withdrawn from his pocket, he took out a small pellet and forced it unceremoniously through her teeth.

'I invented an antidote whilst I was about it,' he explained. 'Had to keep on taking it myself when I was experimenting. She's only got a touch of it. She'll be all right in five minutes. What I should like to know is,' he concluded suspiciously, 'what the devil she was doing here, any way.'

The recovery of the young lady was almost magical. She first sat up. Then, with the help of Lavendale's hand, she rose easily to her feet. She pointed to the spinney.

'What on earth is this awful thing?' she faltered.

No one spoke for a minute.

'What were you doing round here, young lady?' Mr. Hurn asked bluntly.

She looked at him with her big, innocent eyes as though surprised.

'I was motoring along the road,' she explained, 'when I saw you stop,' she went on, turning towards the General. 'I remembered that I had heard there was to be a review here. I thought I might see something of it.'

There was a silence.

'Perhaps,' Merrill suggested, 'the young lady will give us her name and address?'