They went in and were taken up to the first floor. Here in a big hall stood a number of wooden crates bearing a firm's name, "Morton and Pratt, Manchester." On one of the crates the Englishmen were sitting, waiting. Perrine noticed that from their dress they had every appearance of being gentlemen, and she hoped that she would be able better to understand them than if they had been rough workingmen. When M. Vulfran entered they rose.

"Tell them that you can speak English and that they can explain to you," said M. Vulfran.

She did what she was told, and at the first words she had the satisfaction of seeing the Englishmen's faces brighten. It is true she only spoke a few words to begin the conversation, but the pleasant smile they gave her banished all her nervousness.

"They understand her perfectly," said the manager.

"Well, then, ask them," said M. Vulfran, "why they have come a week earlier than the date arranged for their coming, because it so happens that the engineer who was to direct them in their work, and who speaks English, is away for a few days."

Perrine translated the phrase accurately, and one of the men answered at once.

"They say," she said, "that they have been to Cambrai and put up some machinery, and they got through with their work quicker than they thought they would, so they came here direct instead of going back to England and returning again."

"Whose machinery were they working on at Cambrai?" asked M. Vulfran.

"It was for the M. M. and E. Aveline and Company."

"What were the machines?"