--Here, here, and here. Setrok's expedition sailed through here and captured coastal villages of Barbarians. You found little treasure because you don't know the history well, and specifically about Setrok. This seafarer practically looted all the natives on the islands of the Wild Ocean and even on the shores; his immense fleet made it quite possible. There was no point in searching their villages, especially abandoned ones: Setrok had almost certainly been there. Therefore, we need to focus not on searching for ancient settlements, but on searching for Setrok's campsites and, ideally, the remains of his fleet.
--Here, here, and here. Setrok's expedition sailed through here and captured coastal villages of Barbarians. You found little treasure because you don't know the history well, and specifically about Setrok. This seafarer practically looted all the natives on the islands of the Wild Ocean and even on the shores; his immense fleet made it quite possible. There was no point in searching their villages, especially abandoned ones: Setrok had almost certainly been there. Therefore, we need to focus not on searching for ancient settlements, but on searching for Setrok's campsites and, ideally, the remains of his fleet.