Piper Fall Durability

	As they wobbled and zigzagged, Piper could make out details of the factory complex below—warehouses, smokestacks, barbed-wire fences, and parking lots lined with snow-covered vehicles. They were still high enough so that hitting the ground would flatten them into roadkill—or skykill —when Jason groaned, “I can’t—”
	And they dropped like stones. They hit the roof of the largest warehouse and crashed through into darkness.
	They hit the roof of the largest warehouse and crashed through into darkness.
	Unfortunately, Piper tried to land on her feet. Her feet didn’t like that. Pain flared in her left ankle as she crumpled against a cold metal surface.
	For a few seconds she wasn’t conscious of anything but pain—pain so bad that her ears rang and her vision went red.
	...
	She looked at her foot, and wave of nausea swept over her. Her toes weren’t supposed to point that way, were they?