You even complete a quest by doing so, and get some nice experience for it. Not sure where that quest is actually handed in, might be the king or the highest fire magician.
You get a reward for reporting the completion to the King, but obviously only if you havent chosen Beliar or Adanos. I think the reward was fairly substantial, several thousand gold or XP.
i tried luring them Orcs one at the time but suddenly the Commander got wind of me & the whole pack chased me - all the way to Ardea! luckily the rebels helped me to finish them off with a casualty or two.. hopefully the rebels won't be cross with me for leading the orcs onto them.