So, if you're open to it. My OC, [Treepaw] is from ThC and this would be so perfect for her. Since they're in separate clans, they may or may not ever really meet (and maybe that'll drive them both mad), but Tree is battling a mental illness currently where she's being led around by an inner voice. Meeting Reid in her dreams would amplify this and probably convince her that she has two "friends", but only one she can truly see.
She'll become very emotionally attached if they meet often enough, Reid doesn't have to. He might end up being a "comfort zone" despite what could actually happen.

We can brainstorm from there. Just throwing an option out.

I also have [Hawkbite] in ShC heh. His page says it all. He's a fun one to do bizarre things to since he'll either be extremely annoyed or accept it and fuel a fire.

@redshiftreign