Should the "falling" be (like this sci-fi version) or metaphorical (falling in love, falling from grace)? What is the target age group for the story?
Elias adjusted his aero-flaps, the small carbon-fiber wings attached to his suit. He used them to steer toward a floating crate—a remnant of a cargo ship that had succumbed to the same fate. He kicked off a piece of passing debris, a scorched recliner, and caught the edge of the crate.
At first, there was screaming. Thousands of voices cut through the air, a choir of terror that eventually faded as people drifted too far apart to be heard. Now, there was only the rush of the slipstream.
"Still falling?" a woman’s voice crackled back. It was Sarah. He’d picked up her signal yesterday. She was somewhere roughly four miles "below" him, though direction had become a suggestion rather than a rule.