Visibility

invisible but the defender is aware
that he is being attacked, he may
dodge at -4. If the defender makes a
Hearing-2 roll, he may also parry or
block – still at -4. If he is completely
unaware of his attacker, he gets no
defense at all! If the attacker is in
smoke or unnatural darkness, but the
defender is not, he defends normally,
since he can see the weapon coming.
Note also that an unseen fighter
can safely try things that a normal
fighter could never do – or he may just
wait in a corner until his foe is
exhausted!