Had she slipped up somewhere? He had warned her not to attract suspicion. He knew how dangerous Baird might be, and he cursed himself for involving her in this business.

He picked up the receiver again and called Purvis.

‘Zoe’s missing,’ he said, when Purvis came on the line. ‘It may be a false alarm, but I don’t think so.

Can you send Ainsworth over to take care of Gillis? I want to look for her.’

‘Think anything’s happened to her?’ Purvis asked sharply.

‘Your guess is as good as mine. Has MacAdam reported about Baird’s movements tonight?’

‘Baird’s in the club now.’

‘I haven’t seen him. You sure?’

‘Mac phoned through about twenty minutes ago and said he tailed Baird to the club. He’s been watching the front entrance, and hasn’t seen Baird come out.’

‘There’s a rear exit. Doesn’t the fool know?’ Dal as said angrily. ‘Wel , he can look after Gil is. I’ll tell him. Baird’s not in the club, unless he’s in Rico’s office. I’d better go along and check that.’