Constable Plimmer looked at Ellen, and Ellen looked at Constable Plimmer. Down the street some children were playing with a dog. In one of the flats a woman began to sing.

'Hop it,' said Constable Plimmer.

He spoke gruffly. He found speech difficult.

The girl started.

'What say?'

'Hop it. Get along. Run away.'

'What do you mean?'

Constable Plimmer scowled. His face was scarlet. His jaw protruded like a granite break-water.

'Go on,' he growled. 'Hop it. Tell him it was all a joke. I'll explain at the station.'

Understanding seemed to come to her slowly.