[quote=@CirusArvennicus]
Trinity kinda knows.

We're... are we doing things about this?
[/quote]

She knows something's wrong. But no, so far, no one who's suspected questioned him cause they have the thinking 'if he doesn't want to talk about it, don't ask about it'

Those who probably know thanks to Wizard X, Mayt and Penny, haven't done much. Penny went out to find the Phoenix, but it didn't seem to lead to anything that might help cause Solaris was like 'GO AWAY' and Mayt lost all memory from his time in Edolas.

So, one day, Karn will just up and vanish.