John Scalzi is a well known sci-fi author who is published by TOR/Forge books.
I have some of them via my niece Anna who used to be Piers Anthony's editor
when she worked there. Ok, so here's what's going on. He tweeted a comment that
no one is doing any fan fiction of his books.

I sent him a note that I thought some of his books would go very well as
Transgendered Fiction and have received permission for me to tell you that his
world is open. The story and Universe I was thinking about was from his book
"Old Man's War" and the sequels. You have to be old to join the war, and you