The Wizard is lecturing on the subject of restoring life to
the dead, Frankenstein, etc. While he lectures, several annoying
houseflies buzz around him. He finally picks up a fly swatter (or
uses a rolled up scroll) and swats a fly. "Got him!" he
exclaims, and picks up the dead fly to show the audience. He
pretends to hear a challenge to bring the fly back to life.
"So you don't think I can do it?" he asks. He then has
an onlooker hold out his palm and drops the dead fly on it. After
a few minutes of muttered incantations from the Book of the
Dead by the Wizard, the fly stirs, flips over and flies off.
The Wizard quickly grabs at the fly and catches it, holding
it in his closed fist. Of course, he explains, restoring life to
that which was dead can have some awesome consequences, as the
Frankenstein story points out. Sometimes, when brought back to
life, the subject turns into a MONSTER! As he shouts the last
word, he opens his hand to reveal a giant fly.