George R.R. Martin has announced the release date of the companion novel for his “A Song of Fire and Ice” saga.

Mashable reports “The World of Ice and Fire” will be released to stores on Oct. 26. The novel features the history of Westeros, which spans from the Dawn Age to the fall of the Mad King, Aerys II Targaryen.

Unfortunately for fans, there is still no release date set for the sixth “A Song of Fire and Ice” installment, “Winds of Winter.” Martin recently told Digital Spy his writing process for the sixth book is complicated and not something he wants to rush through.

“I have days where I make lots of progress, I have days where I make next to no progress, I have days where I think I'm going backwards because I don't like what I wrote yesterday,” Martin said. “So I've given up making any predictions on that. I'm just writing it and when it's done, it'll be done."

Martin also won’t be taking part in the fifth season of HBO’s “Game of Thrones.” The author usually pens the script of one episode, but didn’t want to take away time from writing the “Winds of Winter” this year.  HBO's "Game of Thrones" season five is currently in production.

"I'm not writing a script for season five, but I'm still a co-executive producer, so I'm still involved on that level," Martin told Digital Spy. "It takes me about three weeks to a month to write a script, and with all the pressure to finish and deliver 'The Winds of Winter,' I decided my time was better spent finishing the book than taking off three weeks to a month to get a script done."