There is an neutral cleric, Maximus, who is worshiping not a deity, but a cause --cause; he's got two domains, War and Travel. At his first level, he chose that he'll channel positive energy and will turn undead. Then
Then, his alignment became evil. As he doesn't worship a particular deity and his domains have nothing to do with alignments, I believe he still has access to his divine magic AND both domains, but the real question is: What happens to his channel energy ability, as well as his turning ability?
Does he still possess the positive energy abilities, or do both of them turn into "negative energy" and "rebuke undead"?