Automatically she eyed the pair of sentries posted on the first and last cars, making sure their eyes were searching the sky and the surrounding forest, and reminded herself to rotate the watch soon. More than enough soldiers were available for short stints of no more than an hour, to limit both inattentiveness from boredom and exposure to the buffeting slipstream. She acknowledged the not-quite-salutes the look-outs threw to indicate they'd seen her, then turned back around to face into the wind. With finicky care she spread her wings and commanded the mysterious clinging force she'd discovered to dissipate.