[@Lord Zee] the poisoning is incurable but it can be prolonged. The only special exceptions are in the neutral zones where both light and dark mix to where it is safe for both sides to stay longer than a day. Once they leave the zones, though, it will be a while before they can reenter. However, I made humans so susceptible to the darkness for a reason. So long that Lucius is human, he can evolve, in a sense, to another species and race entirely, that has yet to be revealed. Of course, there is a price one must pay.