I hope I'm not posting this in the wrong place. I wasn't sure whether I should ask this question in the Lost and Found, because what I'm looking for is not a cartoon. When I was young- either in the eighties or early nineties- I used to read a series of computer-related fantasy books that each contained the poem,
Riders of the Light
From the Land of the Night
Pass through the Glass of Lightning's Window
Each book also came with a kid-friendly BASIC program that let readers create a video game based on the book they'd just read. I had thought all these years the name of the series was, like the first line of the poem, "Riders of the Light." But recently I decided to look it up... and it's like it never existed. I can't find anything, not even authors who worked on it or other people who used to read it.
Has anyone else heard of this series? Do I have the title wrong? Did I dream the whole thing? 
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Requiem's alternate ending!
