Uh, nice

Lois walks right into the middle of it and doesn't even notice what's going on until MaxiClark runs off to get medical attention to the convenient plot device.
Regarding all the ideas where MiniClark comes from:
Mercy's notes in part 1For the purposes of this story, Clark came to earth at about age 4, Green Green Glow of Home never happened, and Clark never lost his spaceship. Everything else is pure LnC. This story is post-Nightfall and pre-Barbarians at the Planet. I haven't seen the show recently enough to place it any more exactly.
Michael