Here a blinding gleam of light flashed athwart his eyes and , letting go of Erwin, he darted aside suddenly on a differing course. Erwin's body crumpled into a heap. A heavier man might have toppled over the edge, perhaps hanging helplessly at peril of falling out, unless held by the straps which many old aviators neglect. As it was, the nerveless lad was held by the high rim of the opening that fenced them both in. For the moment the boy was safe.