The Ardmore complex relies on strategic placement of security elements, 
rather than blanket coverage. Security cams watch all external entrances and 
selected internal locations. Tikki has to worry about only three, those located on the second-, fourth-, and sixth-floor landings directly
above her. She connects a second device to three colored wires from the panel. 
This device, purchased locally, is called a line-looper. She’s tested it to make
sure it works. What it does is record what a security cam sees over the course 
of, say, a millisecond, then feeds that recording endlessly to the central 
monitoring station. That effectively blinds the cams to what’s really passing
by.