In this chapter, we learn that the fairy-king is going to "assimilate" the fourth of the Ten Commandments, which is, "Thou shalt not kill." This is a big deal, because it means that he's not going to be able to kill the monster that's trying to kill him. It also means that the monster is still trying to "fuse" with the "Thou shall not kill" commandment, which means that his body is rejecting the fourth commandment. This means that, even if he were fully recovered, he'd still be unable to stop the monster from killing the queen. This is why the whole mission was such a failure, because the monster's mind is still rejecting the four-command commandment. It's like the "warped ball of light" is trying to reject the four commandments, but it's just not strong enough to do it. The only thing that can stop the beast is the "kind soul" of the queen, and she's lost a lot of blood in the process. She begs the king to take her back for her.