The order came from a voice behind the boys and old Joe, who had been bending over the stricken little gray fellow.

They all wheeled like a flash. In the doorway stood three figures—tall, rough-looking men dressed in the ordinary garb of the trail. All three were armed and each had assigned himself to “take care of” one of our adventurers.

The “sick” man broke into a shrill laugh.

“He! he! he! Thought you’d fooled Wolf Ericsen, didn’t you? Well, by the eternal, you’ve got another guess coming, I reckon. Dick! Sarsen! Flem! keep ’em covered while I get up.”

CHAPTER XXIII—SANDY ALONE.

The day following the departure of Tom and Jack from the camp of the Yukon Rover, Sandy decided that he would take a stroll along the trap line for some little distance to see if any of the smaller traps, interspersed with the big box traps for catching the live foxes, had caught anything. Before he departed he carefully fed the animals in the “kennels.”

This done, he wrapped himself up as warmly as possible in a thick parkee, heavy lumbermen’s boots and a cap that came down over his ears. Before leaving he took care to write a note and leave it on the table in the cabin, informing the two partners briefly where he had gone and what had taken place during their absence, in case they should return before he got back again.

When all this had been attended to, Sandy filled a haversack with food and packed a small aluminum kettle and set out on snowshoes on his solitary travels. He wondered what his companions were doing and what success they had had in their pursuit of the thief. The boy felt lonesome without his chums, but as he made his way over the crunching snow the keen air brightened him up and raised his spirits considerably.

Since Tom and Jack had left, nothing to cause alarm had occurred, and although Sandy had passed an anxious night, he had seen nothing to indicate that any further harm was meditated to the valuable live things now left in his sole care.

The traps were strung in a regular line, whose general direction was marked by blazed trees and here and there some piled rocks. Near to the Yukon Rover’s mooring place there were no box traps. These were stationed far back in the remoter districts, for the valuable foxes they were after were wild, shy creatures, seldom coming within miles of a spot where they could detect the presence of human kind.