Tikki walks through the apartment to the master bedroom. The window
overlooking the bed is about three meters across. At fifteen stories above the 
ground, the pane is probably impact-resistant plastic. Tikki holsters the Kang, 
takes a small packet from her belt. In it is a two-meter-long strip of zip tape, 
which she smoothes across the lower half of the window. An ordinary butane 
lighter is sufficient to ignite it. Holding a hand across her eyes, Tikki 
applies the flame, then turns her back as the tape flares. She hears a hissing 
sound, like high-voltage electricity, followed by a bright flash of light. At 
the same time, an alarm bell begins to clang. Probably keyed to the window.