If I recall correctly, Zersisk wielded a weapon capable of discharging lightning while the dwarf chasing Ozrick was commanding the weather and riding the lightning through magic. The dwarf never actually travelled with or summoned jade centipedes as far as we know.
The centipede and terrorized villagers back at the town were a result of powerful illusion magic. It seems to me there is several mysteries occurring at once. We'll need to get to the bottom of all of it, but I feel keeping Ozrick safe may be the priority right now. That seems to be the bigger threat.
I ask Brett and Ito Kiwani if there are any blessings or items that Ozrick would benefit from while we travel. In particular, anything that would mask his presence from the dwarf. Oz can cast Protection from Evil, but it only lasts a few minutes and wouldn't be enough to keep Ozrick safe for long periods of time. Anything that could ward off the spirit inhabiting the dwarf or cloak Ozrick's essence from the creature would be helpful and appreciated.