If they run towards you, can't you just use Fear on them and/or Muffle + Invisibility yourself?
If an enemy has detected you they'll attack you even if you're invisible. You could fear them back away, but the real intention is to get them into a bottleneck where you can frenzy them as they arrive, and get them to attack their friends. Then as more frienda arrive, you frenzy those and so on til you're down to just 1 man who you finish off or calm depending on your personal style.

