Desert Treasure: He translates the Etchings into a book of Translation for you.
The Temple at Senntisten: Must talk to him to obtain a Restoration certificate for Azzanadra.
You can talk to him after The Dig Site to obtain the Codex Ultimatus and unlock four new combat abilities(if you have the appropriate levels). You can also give him 3 Nuggets in return for 1 Gold ore.
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