Their glances suggested to one another that somebody might put a question—somebody who had tact, and could wrap it up in a decorous shape. Peggy herself offered no more information, but sat down by Tommy and began on her soup.

Conversation, reviving after the shock that Peggy had administered, presently broke out again. Under cover of it Peggy turned to Tommy and asked in a carefully subdued whisper: 'How much is a mark?'

'A mark?' repeated Tommy, who was tasting the champagne critically.

'Yes. German money, you know.'

'Oh, about a shilling.'

'A shilling?' Peggy pondered. 'I thought it was a franc?'

'No, more than that. About a shilling.'

Peggy gave a sudden little laugh, and her eyes danced gleefully.

'You mustn't look like that. It's not allowed,' said Tommy firmly.