"Equal and Opposite"
The black cat is a white hat
but the white cat has a black heart.
The first hint of this appears
when Midge meets Schrodinger,
only to have him stare coldly at her,
then hiss and run away.
She asks what happened to him,
expecting Schrodinger to be hoary
when everyone knows him as sooty instead.
Alex grows suspicious,
begins checking and rechecking equations.
She discovers that this is evil!Midge
from a moral andervector nastier than their own.
For every action, there must
be an equal and opposite reaction.
Later on, evil!Schrodinger
slinks through the Teflon Tesseract.
It is no trouble for a cat to walk through walls
or play games with the cosmic strings.
Good!Schrodinger is dismayed.
There are epic catfights. The fur flies.
Time after time, the team prevails
and yet somehow the villain
always returns to bedevil them again.
Evil twins ...
every hero has one.