The Grey Knights Omnibus is a story of the Grey knight named Alaric. He has been ordered to protect the charismatic Inquisitor Legeia who is an Inquisitor of the Order Malleus that hunts demons. When Legeia is requested to hunt the worst demon named Ghagouloth Alaric goes with her. The book so far is an excellent science fiction and sugguest it to anyone looking for an action packed but long book.