motorcycle Wards

Then there was a low rumble behind me, and Karrin Murphy appeared, wearing her motorcycle jacket and riding her old Harley, sticking out her good leg to support it as she brought the bike to a growling halt.
I eyed the motorcycle. Then her. “How?”
“Like I don’t keep this old baby behind wards,” she said. “The Ordo Lebes did it for me years ago. And bikes are the only things that can get through the streets.” She checked around her and then up the ramp. “Come on. There’re more of them coming up from the lake.” She drew a radio out of her pocket, turned it on, and said into it, “This is Valkryie. I’ve got Booster Gold.”

Battle Ground Chapter 16, Page 152-153