Graham peered and saw his face dimly.

He was staring down the long ribbon of sky, and Graham, following his eyes, saw the flying machine small and faint and remote.

Then he saw that the wings spread on either side, that it headed towards them, that every moment it grew larger.

It was following the edge of the chasm towards them.
The man's movements became convulsive.

He thrust two cross bars into Graham's hand.