Mike showed up at a ringside table that night, Jill having coached him in how to bribe the maître d'hôtel to give him such a spot; he was determined to pursue this mystery.  Jill was not averse.  She came strutting out in the first production number, her smile for everyone but a quick wink for Mike as she turned and her eyes passed across his.  She discovered that, with Mike present, the warm, pleased sensation she had been enjoying nightly was greatly amplified - she suspected that, if the lights were out, she would glow in the dark.