If intricate images of flowers and seascapes aren’t the kind of thing you’re looking for in an adult colouring book, then fear not: George RR Martin is currently overseeing publication of a Game of Thrones book to exercise your drawing muscles.

American publisher Bantam announced yesterday that George RR Martin’s Game of Thrones Coloring Book would be published this autumn , and would “feature 45 original black and white illustrations, inspired by characters, scenes, locations and other iconic images” from the fantasy novelist’s A Song of Ice and Fire series, the Los Angeles Times reported. The art will be drawn by “world renowned fantasy illustrators” Yvonne Gilbert, John Howe, Tomislav Tomic, Adam Stower and Levi Pinfold, Bantam told Time magazine .

No details have yet emerged about the scenes the artists will be covering, but given Martin’s penchant for killing off characters, and the amount of blood and gore with which the fantasy series is drenched, it seems fair to assume that a good quantity of red pens will be needed to complete the pictures.

There is clearly already a demand for the title: an unofficial Game of Thrones colouring book hit the market this spring, letting readers “connect the dots to give Jaime Lannister his severed hand back; color Daenerys’s baby dragons; lead Tyrion through a maze to get to a brothel, and much more”. There is also a Game of Thrones colouring website which tells users “‘The night is dark and full of terrors’, so stay inside and do some coloring in!”

King’s Landing: plenty of turrets to colour in there...

Martin’s official, October-scheduled title will join a thriving market for adult colouring books: three of Amazon.co.uk’s top 20 are currently colouring books for adults, with Scottish illustrator Johanna Basford’s Secret Garden title selling more than 1.4m copies worldwide to date.

Publishers have been rushing to cash in on the trend, with a flurry of forthcoming titles, including the new “Colour Me Mindful” series from Anastasia Catris, described as “mindful art therapy” and featuring images of underwater scenes, tropical and bird images.

Basford told the Guardian earlier this year: “I think it is really relaxing, to do something analogue, to unplug. And it’s creative. For many people a blank sheet is very daunting - with a colouring book you just need to bring the colour.”

The Game of Thrones images are likely to be less relaxing, but could fill the gap in the schedule for fans desperate to read the sixth book in Martin’s series, The Winds of Winter, on which the author is currently working.