Wow -- this quest was a real challenge. Four red named mini-bosses and two at the end with over 90,000 HP. One death due to a fail on Flesh to Stone, but fortunately it was within running distance of the shrine. Shoutout to Shadowsteel for a suggestion on how to get the end fight done. The last part was like a NASCAR race, except racing backwards while shooting your opponent for over 200 laps.