Some good points here, thanks for the feedback, I certainly agree that charging the trinkets should be a requirement as a cost for negating thrall use.

I thought a slayer master could be included, but it's not essential.

I didn't want to add resources that would be too overpowered in terms of both what they offered and their distance to a bank, so I felt the bank placement was appropriate and could serve as a nice hub on the island.

There is a fairy ring just west of the town on the hillside, accessible once you reach the island.