This page offers a guide on where to locate and how to complete The Prodigy, which is a Mystery found in Essexe, AC Valhalla.
Speak to the Bard
This mystery is located at Agnitum Tower, west of Colcestre. When you speak to the singing bard, you’ll discover that a holy man has been pestering them for their sinful singing. You’ll then need to participate in a fist fight with the Bishop of the Ruins to settle whether the bards can stay and sing or not. The Bishop is surprisingly strong for a holy man, but he shoudn’t pose too much of a threat.
Once you’ve defeat the Bishop of the Ruins, speak to the bard again to complete the quest.