Gothic 3 where can i learn fire mage skill

where can i learn fire mage skill
i cant find any trainer who can teach fire mage skill
i only find water mage and dark mage trainer

In the castle of Venguard, there is a mage (forgot his name) in the room above the throne room.
Enter the throne room, keep to your left, climb up the stairs and you'll find it in no time.
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