Shirt of the Golden Eagle
Shirt of the golden eagle +10 is an artifact body armor stolen by Oree from the Cathedral of Attnam. It grants 40 AV. It is said to be the best armor in existence, making its wearer nigh-invulnerable.
Retrieving this armor and bringing it back to Petrus will reward the player with the Knighthood Ending. The player can also decline to surrender the Shirt to Petrus, starting a fight where the player can kill Petrus and become the new high priest of Valpurus.