She laughed sharply. “Caught? There’s no one within ten miles, of this godforsaken place.”

“No humans,” I corrected, motioning to the right where the clearing curved away. A black box-like thing, some six feet square, was trundling toward us around the bend in the circle.

(Mobile televisor guard from 'No Dark Gallows for Me' by John Jakse)

“There’s the guard. It’s a spotting device with a televisor lens hooked to a receiving set in Venusburg.” I indicated a round aperture in the front of the thing. “There are three of those, powered by atomics. That clearing circles the. House of. Gulbrandsen, and those three boxes move around the clearing at regular intervals. They never run down, and if their lens picks up any human life crossing 'the path, a picture is relayed to Venusburg and a patrol flier is sent out to pick up the offenders.”