In the US Ace Books will release it later on November 26th.
There'll also be the more expected strategy guide releases from Prima Games in the US, and published by Piggyback across EMEA. It totally spoils every nook and cranny.
Author Oliver Bowden wrote the novel tie-in which explores the origins of protagonist Edward Kenway, the future swashbuckling assassin and grandfather to Assassin Creed III's Connor.
Assassin's Creed IV: Black Flag releases on Xbox 360, PS3, Wii U and PC October 30th.