Tiadeche is one of the three brothers in Tai Bwo Wannai. He can be found fishing Karambwan on the coast of Karamja, north of the crashed gnome glider by the shipyard (not functional gnome glider or on the same section of the island as the volcano). When the Tai Bwo Wannai Trio quest is complete, he can be found in the village of Tai Bwo Wannai in the most southwestern house where he sells the following items:
- Raw karambwan - 440 coins each, amount of 10, respawning 1 every 6 seconds until mid-April 2010, at which point this time was significantly increased, leading to a spike in prices for karambwan on the Grand Exchange.
- Karambwan vessel - 5 coins, amount of 10
He wears a cat training medal.