They hadn't figured out a way to make the adverts come at you head-on, and 
so she maintained a roughly consistent direction down the middle of the street 
until she vaulted an energy-absorbing barrier at its end and vanished into the 
forest. Harv followed her a few seconds later, though his arm didn't support 
vaulting and so he ended up hurtling ignominiously over the top, like a hyped 
autoskater who hadn't seen the barrier at all, just body-kissed it full tilt. 
"Nell!" he was already hollering, as he came to rest in a nest of colorful 
discarded packaging materials. "You can't stay in here! You can't stay in the 
trees, Nell!"