As you search the cave and the area you will find two keys on the mage. You also find a small disk. Albrecht will see that it is unbroken teleportation disk that the mage was using.
The only treasure you find is in the mages bed chamber with locked chests that the keys open and the wardrobes. When you open the chests and the wardrobes you will find the following:
5,000 PP, 6,400 GP,4,500 SP 11,000 CP, A bag of gems of various sizes and colors 14 total, A suit of leather armor, two suits of finely crafted eleven chain mail, 16 vials of potions, two wands, a rod, four repair kits, three master repair kits, and a lot of supplies that was taken off many wagons the mage and his crew stole. You can estimate it to be worth several thousand of gold.