Demon Knights # 21 (DC Comics 2013)
The Knights are ready to complete their mission but what happens to the world when Vandal Savage and Etrigan the Demon gain control of the Holy Grail?
Demon Knights # 21 is written by Robert Venditti with art by Chad Hardin and a cover by Howard Porter.
Demon Knights # 21 is a 32 page comic book in full color and rated T.
Cover may vary.