  The rate and manner of vacuum decay are calculated in an explicit flux
compactification, including all thick-wall and gravitational effects. For
landscapes built of many units of a single flux, the fastest decay is usually
to discharge just one unit. By contrast, for landscapes built of a single unit
each of many different fluxes, the fastest decay is usually to discharge all
the flux at once, which destabilizes the radion and begets a bubble of nothing.
By constructing the bubble of nothing as the limit in which ever more flux is
removed, we gain new insight into the bubble's appearance. Finally, we describe
a new instanton that mediates simultaneous flux tunneling and
decompactification. Our model is the thin-brane approximation to
six-dimensional Einstein-Maxwell theory.
