Tying a longer string to the balloon, Bayliss allowed the white, filmy mass to soar upward.

When the balloon had reached a height of twenty feet above the near-by tree tops, Bayliss made it fast to a tree trunk.

Then he and Dodge skipped hastily to a point some eighty yards away, where they speedily sent up another.

In a very short time all six balloons were flying on the night air, each with its trail of white fleecy stuff hanging therefrom.
"They do look like ghosts flying in the air, don't they ?" demanded Bayliss exultantly.
"Not to me," muttered Bert.

"But that's because I know what they're made of." "Let's hustle now with the rest," urged Bayliss.
"Right you are," agreed Bert.
They hurried along, going a bit nearer to the camp, until Dodge pointed to a tangle of bushes.
"That'll be a good place to hide with the siren.