They were now rigged out as two regular army soldiers, and pretended to be sightseeing, as most Americans are up in that region.
La Croix and his party only remained a day in Toronto.
The detectives now discovered that two of the spies had disappeared and a swift search was made to find them.
Harry did the investigating.
He finally discovered that one of them had gone to get married, and the other acted as best man at the ceremony.
The spy married a pretty French-Canadian girl.
His companion returned to La Croix's party and the bride and groom started off on a short wedding trip.
Young King Brady dropped them.
"They'll be so busy spooning and lally-gagging that he won't have any time to attend to this smuggling game," thought the boy detective, as he went back to his partner to report the occurrence.
Old King Brady was watching the Frenchman's party.