Came across this today over at Jeff Vandermeer’s Ecstatic Days blog. It's a conversation between Dan Abnett and fantasy author Mark Charan Newton (who also happens to work for Games Workshop’s Black Library range of tie-in novels). Dan has how had over three dozen novels published but, amazingly, Triumff: Her Majesty’s Hero is his first non tie-in book.
Mark and Dan talk about the frustrations and advantages of writing tie-in work versus the advantages and frustrations of working in your own universe. It's a cracking read and seems all the more timely to me as my latest piece of tie-in work dropped through my letterbox yesterday to be proofed. You can read The Relic in the forthcoming Legends of the Space Marines Warhammer 40K anthology.