As soon as he had climbed to a safer level he looked again.

There was the mail ship, coming down!

He again cut the gun for a glide, the better to watch.

His heart was in his mouth.

The mail ship was dropping swiftly. Suddenly it side-slipped.

Would there be a crash?

“Poor Don!” gasped Garry, “he has sewed himself up in an awful snarl if anything happens!”

At the same instant that the siren began to scream its crash summons he saw the mail ’plane come out of the side-slip.

To his amazement its pilot did not appear to be aware of the Dragonfly, cruising in a gently banked circle over the edge of the swamp, just beyond the end of the runways.

Instead, with a spiral, the pilot began to climb.