Request #138

 I don’t have a lot to go on. But, I read this book in the late 80’s. I think the author’s name was Christopher Green or Christopher White.
I had 2 books by the same author. His name was embossed in gold on the cover.
A gifted boy, 15-17, was abducted and taken to an underground compound. Everyone wore jumpsuits, each colour had a different meaning. His best friend was a girl and she set out to find and rescue him.
She called him The Whiz, everyone thought it was because he was so smart, but it was because they had shown each other their ‘bits’.
She ended up finding him and they hooked up at the end.
Help me. I can’t rest until I find out the title, and hopefully find a copy of the book.  Egypt Green by Christopher Hyde, solved by Lost Classics reader Danielle