“Now for the map!” exulted Sandy.
All three removed their snowshoes at the mouth of the under-ground passage, which seemed to have been formed by the erosion of water in ages gone by, and, in moccasined feet, went along the dark corridor, lighting candles which they had brought with them from Fort Good Faith, not far south.
“Remember it’s the left branch when we get to the fork,” Sandy called to his chum.
“Yes, I guess I won’t forget that.”
Dick recalled a particularly exciting incident in that same cave, which would indelibly impress upon his memory the correct passage to the underground chamber, which was their destination.
The three hurried on down the main passage until ahead, in the dim glow of the candles, they could see where the main cavern branched. Almost there, Dick in the lead, paused.
“Wait,” he whispered.
Sandy and his uncle drew back.
“I thought I heard a sound in the passage to the right,” Dick said in a low voice.
They listened for a few seconds, but heard nothing.