Sobs And we haven't even gotten into the whole love and betrayal aspect from Diarmuid's end. Not so direct as poor Kyrian, but still led to Diarmuid's death.

Right! I noticed that. When it comes to Servants (which is what Diarmuid is called in canon), they have enhanced magical and physical resistances, but nothing specific for mental protection. At least, Diarmuid doesn't. If Kyrian's mind reading is magically based, he might feel a little more resistance than if it is based on anything else (straight up psychic abilities, god-given gifts etc), but the lack of specific mental protections and the fact Diarmuid is so open and trusting, means his mind is pretty much open to mind reading. Actual mental manipulation is a little different, but mind reading is totally a go. If there is something specific Kyrian is looking for or a specific statement that draws his attention more than another, let me know and I will throw some information your way in my next tag.

Thank you for the eye information since Diarmuid likely will move closer as the thread goes on. It might not mean anything to him, but he is very observant and would pick up on it. (Heck, he has a canon ability that is based on his observation skills. Me, on the other hand, am not always so quick on the pick up! LOL!)