Mark Eustace Masterson and his twin brother Mark Eustace Masterson.
Over time, it's revealed that the brother is really a mirror, held next to Mark
at all times by a man working off a debt to Mark's father.

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Dawn at the Icosahedronworks. Men wearing togas and carrying steel
lunchboxes file bleary eyed out of the massive front archway. It's not
easy making Ideal Forms on the graveyard shift. They pass through the
graveyard, their sandals kicking up limp dust in the dew of a new day,
past yawning early boys leading sheep and goats out past the olive trees.

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Lenticular Lisa languishes on the sand. The sun shines through her and
there's a smoking pinpoint on her towel. She's a sharp girl. Her vision
is 20-0. She sees every tiny thing everywhere.

Lenticular Lisa shrinks to the size of an atom. She lives on the
surface of an atom. The detail canyons form on all sides. She surfs the
quantum waveforms on her board, which is 12 angstroms long.
 
Lenticular Lisa's got a cute reticule. Reticently she elucidates
the spectrograph of her lucidity spectrum. Her heliographic hair is
rutilated in the sun. Rude graphic dudes drag their cold shadows across
her towel, and crouch winking against the glare. They're projected upside
down and miniature on the sand behind her.