The Blessings of Balthazar

Skeletons have taken over the fields in Ashford Village, and you are to smite them. Mhenlo teaches you two skills to help you:
 * Retribution
 * Symbol of Wrath

Head east through the gate and north to the fields. You can defeat the skeletons pretty easily with Banish. If a group of them forms around you, use Symbol of Wrath to inflict damage upon all of them. This quest is not difficult.

Report to Mhenlo when you've killed every skeleton, and he gives you a reward:
 * 250 Experience