This is just another idea.
I don't particularly like the hidden n/pc echo
"A strange shadow" does not accurately depict the pc hidden in a wide variety of situations.
Perhaps the n/pc is just moving through the crowds unobtrusively, perhaps they are snuck under a bed.
To me *a strange shadow* has a whole set of different connotations than the reality of the situation.
I would prefer that pc's who pass a scan check or the like simply see the pc as normal, allowing the n/pc to depict how they are hidden.
Hmm. But I would like it to be more than an all or nothing situation, you know?
Tradition! (http://www.youtube.com/watch?v=gRdfX7ut8gw)