"If the Dawson crowd are warned all around about us and the revenue officers, they may run for some other territory," suggested Hiram.
"We want to be on the lookout for that," replied the young aviator.
They made themselves a comfortable bed, and both were soon asleep. Hiram woke up first; and found the sun shining in his eyes, and was about to shift his position, intent on a longer nap, when he checked himself not moving a muscle.
Through his half closed eyelids, still feigning sleep, Hiram kept his glance fixed on one spot. He almost held his breath. Thus for nearly five minutes he lay inert, but every nerve on the keenest edge.
His glance widened and seemed to be following some disappearing object. Then he sat straight upright, stared fixedly down the hill, and leaning over pulled his companion by the sleeve.
"Dave! Dave!" whispered the excited boy-"wake up! We've been discovered!"
CHAPTER XXI
A CHASE IN MID AIR
Dave roused up, wide awake in an instant. He was about to spring to his feet, when Hiram pulled him back with the words:
"Don't get up."