Ultima Online Five on Friday Q&A

This week's "Five on Friday" Q&A feature on the official Ultima Online website covers questions about the Cleansing Winds spell, elf hats, crafting speeds across clients, and more.
Is there an undiscovered boss encounter in the Stygian Abyss? I've heard beta testers who said developers stated the players had not discovered everything. If there is, any hints?

There are no undiscovered boss encounters but it is true that you guys haven't discovered everything yet. And no, I'm not telling :)