LU-C is in the Mythlande Series. The eyes are the brains and soul of every Retro GA.
Just for fun...I made an animal-shaped Retro GA. Rambot. I wrote a very short story about this character. It will probably stay in my hard-drive.
I wrote a short story about Edge. Before the Mythlande series became books. His story doesn't match the Mythlande universe, but it is real close.
L-VIS is a Toaster Head Retro GA. He was never in a story.