“Dominion Government cruising plane, C 94,” came the prompt answer. “Put out from Peace River Crossing to investigate this fire.”

Two men stood beside the plane and when the boys came up plied them with questions. Had they come through the fire? Were there many cabins destroyed in the country north of there? Where were the boys going?

Sandy and Dick gave them what information they could, in turn asking many questions of their own. Then Dick stated their errand:

“We’ve been sent out by Inspector Cameron to meet a relief party, which is bringing help to the people suffering from smallpox in the remote districts north of the Mackenzie. The situation is very serious. Hundreds have already died from the disease and probably hundreds more will before assistance can arrive.”

Horace Alderby, one of the aviators, spoke up quickly:

“Queer we didn’t hear anything about it when we left the Crossing. I should think that if Inspector Cameron had wired to Edmonton the people at Peace River——”

“But look here, Horace,” interrupted the other, “have you forgotten that the wires are down as a result of this fire?”

“Why, yes, Randall, so I have,” laughed Alderby. “The line is clear from Peace River Crossing to Edmonton, but north the service has been disrupted. It is quite likely,” turning to the boys, “that your Inspector Cameron has not been able to get in touch with Edmonton at all.”

“That’s too bad,” said Dick. “It makes it all the more important why we should hurry on and send in the news from Peace River Crossing. Our plan is to go over to Fort Vermilion and from there try to secure a ride up the Peace in a steam or motor boat.”

“That’s a good three days’ trip,” stated Alderby. “It’s fortunate we ran across you.”