@LazyLlamma As punishment you will type 100 times in triplicate that you will comment once and once only. You're only allowed to copy and paste when no one is watching and don't overdue the pasting. Although isn't there any option to delete like clicking edit, delete all the text, and save?
As for Horus he did order MC to return to him after getting his equipment rather than hide or run off somewhere so wanted MC with him. Also, being the most powerful thing around it would've been easier for him to protect, buff and heal MC next to him along with having a strong ally to help fight or ambush rather than wandering around, possibly getting caught and killed by the knights. Mainly being a criminally insane psychopath with delusions of grandeur Horus would've prioritized himself over the MC since could just use parts of the MC and knights to start on a new masterpiece while if he died MC would be unfinished and destroyed by knights. Unlike many artists it's not like Horus was worried about dying of old age before finishing his project being undead himself.
Btw, is it ever explained in later chapters why Horus wanted to create, evolve, and control a high ranked undead? Horus and MC mentioned several times about Horus wanting to make a strong undead while being arrogant in assuming has total control and authority but not why. Like does he want revenge on x or for the ultimate sword and shield against the highest ranked knights or the first commander of an army to conquer and claim a land for himself or some combination of the above?