The King in Yellow is a) Robert W. Chambers famed horror story about a play that dooms all who read it to madness b) a new graphic novel adaptation of the same by INJ Culbard published by SelfMadeHero. (See a preview here.)
It’s also c) a sneaky ripoff by someone on CreateSpace who used the cover to the Culbard book for their own self-published reprint of the prose book. The SelfMadeHero blog has all the details and how to spot the sneaky fake.
The original book is in the public domain, so no issues there. But stealing someone else original artwork for your own book?
Uncool, dude. Uncool. Go back to Carcosa.