The thudding roar of the engine Dopplers down, then drops like a brick from a 
roof, going almost silent. She hears the whispery breeze rustling the woods and 
the metallic rasping, almost a ringing, of the chopper’s chain-link drivetrain. She squints up the road in the direction of Philly, catches
a glint of starlight on chrome, but that’s it. The chopper rumbles again,
thudding briefly. What’s happening? She’s certain the hog slowed down, but is
the rider going on ahead or coming back?