"Yes, scat!" added Sam.

The guide gazed at them for one apprehensive moment.

The Battleship Boys made a threatening move in his direction, whereat the guide turned and beat a hasty retreat.

Half an hour later, after much difficulty, the young sailors managed to find their way to a second-class carriage on the Boulogne train.

At last they were on their way to their ship. The boys breathed a sigh of relief.

"It has been a great experiment," said Dan.

"Fine!" laughed Sam.

"And we've seen a lot."

"And got 'done' a whole lot more," added the red-headed boy. "If there is anything we haven't bumped up against I should like to know about it."

Dan nodded reflectively.