And so, as the old proverb has it: “All’s well that ends well.”

And certainly matters ended well for the Motor Boys. The next day the warship anchored off quarantine, and in due time Jerry and his friends went ashore and were sent to a demobilization camp. There they obtained furloughs and went home to Cresville, where an enthusiastic reception awaited them.

They told of their parts in the Great War, but they liked best to relate the story of the wreck of the troopship, for it was like some wonderful romance, and the terrors of the battlefield were not involved.

“I’d like to know the story of the Altaire,” said Ned, one day. And later he and his chums heard it.

The freighter was attacked by a submarine and her few passengers and crew forced to take to the small boats. Then the Germans took what they wanted in the way of supplies and were about to sink the Altaire when they saw a United States destroyer looming on the horizon. The submarine fled before being able to place any bombs, though her crew partly wrecked the engine room and destroyed the wireless plant.

The destroyer picked up the crew of the Altaire, but soon after that a storm came up, and there was no chance to salvage the vessel. It was thought that she had sunk, but, fortunately for Jerry and his three companions, she remained afloat. Thus the mystery was cleared.

“But there’s one thing I’m never going to do if we have another war,” declared Ned, as the three chums found a moment to be by themselves after a round of meeting old friends.

“What’s that?” asked Bob.

“I’m never going to be surprised at what a bug-hunting professor does,” was the answer.

“Same here!” echoed Jerry.