I recently read Trion Rising by Robert Elmer. The premise is simple, "What would it be like if Jesus had come to another planet?"
The planet turns out to be a world with multiple suns, though they shine only on one side of the planet. The other side is perpetually dark, yet the citizens there (the Owlings) hold to a spiritual light that those on the sunny side don't understand, so those on the sunny side persecute those in physical darkness.
This makes for an intriguing backdrop for a visit from the Messiah to the world of physical light.
Colorful characters, unique devices, and plenty of action and thought-provoking dilemmas make this a first-class read. I recommend it to readers twelve years old and up. This adult certainly enjoyed it.
This is the first in a series called The Shadowside Trilogy. The second book, The Owling, is scheduled for an October, 2008, release.