So, i have been working on a medieval fantasy set of novels, and i recently thought of a new plot element. (sort of) The books are told from three characters points of view. Early in the story, the first character is thrown into leading his own kingdom, and while he has no prior experience he turns out to be a great, charismatic, leader. He is loved by a lot of people even though he isn't actually the best person morally. The second character is a hardened war veteran who is very honorable and noble, and very loyal to his king (character #1) This character is a great military leader and is very respected. The third character is a somewhat shady dude. It is made clear in the first novel that he is something special. Throughout the story, this character is the "royal guard" for the king. He is never far from the king or the king's wife and children. The character is respected and somewhat feared. He is an exceptional warrior, and has never been defeated in a fight, which (aside from being the king's best friend) is the reason he is the king's guard. Another thing is should add (and something many characters in the story notice) is that this character has no empathy, no fear, and he cannot love or hate. Here's the twist though: The third character is actually Death Incarnate. This character is the manifestation of Death, tricking people into thinking he is a human being. This character has been alive for (literally) forever, and will continue to exist long after any other characters in my story are dead. When this fact is revealed, I don't want to make the reader think that he is evil. His relationships with the king and others is genuine; but he knows that he will be there to see every one of them die, because of old age or other means. I have encountered a possible problem. Since the Grim Reaper is a POV Character for the entire story, i have issues with keeping his reality a secret. The story is in third person limited-subjective, meaning the character's thoughts and feelings are expressed. The character knows he cannot die, and although it is never outright said, this is expressed through his thoughts. "Three men was not a problem. Isaiah wanted a good fight, but he doubted they would send the entire army to give him a challenge." -The character being attacked by three very skilled soldiers who intend to kill him. If a reader were to read this quote without knowing the secret, they could easily attribute his seemingly cocky behavior to thinking he's a better fighter than everyone else, When in reality, he thinks that because he knows he literally cannot be killed. What do you guys think? Would this be easy to hide through misleading thoughts, or would a normal reader not aware of the secret be able to find out that there is something more to his good fighting ability? Sorry if this was too long to read, but thanks for any responses. *Also, if you cared, this character is a fallen angel, who was punished by becoming Death Incarnate. He is immortal, and that is what his curse is. Since he will live forever, he will have the opportunity to make genuine friends, only to outlive them, and see those he loved and cared about die, similar to "The Mortal Immortal" by Mary Shelley. Aside from being immortal, his job is also to guide people into the afterlife, since he is the Grim Reaper.