In the meantime, the cowardly chauffeur, who had been watching from behind a tree, saw that the day was saved, and began to consider what he should do to save himself and his reputation. He had plainly deserted his employer’s wife and daughter, frightened out of his wits when the three ruffians demanded the women’s diamonds as they were on their way home from the opera. But now he leaped the wall again and shouted to the women that he had merely gone to summon the police, seeing that the boys had the case well in hand. Then he jumped to the seat, and, not wishing to face a police examination himself or involve his employer in one, he turned on full power and sped away.

Hardly was he out of sight, than there appeared a detachment of Antwerp policemen, led by an officer running at full speed toward the boys. Some timid householder had heard the screams and shouts, but, too timorous to venture out himself, had telephoned the nearest station; and the sudden appearance of the officers was the result.

“Bother it all,” exclaimed Jack, “here come the police. Although they’d have been welcome a while back, we don’t want them now.”

“Why not?” asked Raynor, not unnaturally.

“Well, we have a very important letter to the captain with us. If the police get hold of us, they’ll want to do a whole lot of questioning, and goodness knows what time we’ll get back.”

“What shall we do?”

“Take to our heels, I guess. It doesn’t look very honest, but we must get that letter to the captain to-night.”

“That’s so; he said he’d sit up and wait for us,” responded Raynor.

“That is why I’m so anxious not to be detained. Come on.”

The two boys set off, running at top speed.