Thanks for the help, everyone.<br/><br/>I'm currently leaning towards Iomadae or Sarenrae, as those seem to have the most compatible ideals.<br/><br/>As for the Paladin oath, it does mention in the description such nebulous things as 'lesser evils' that can be ignored in the pursuit of the 'greater good<sup>tm</sup>' and only addressed later at some time in the future.<br/><br/>So it's not particularly ironclad, unless our DM wants a more hard line, and Aidan specifically has focused his mission more on the mystery of the obviously evil ritual behind Scarlet Moon rather than Urgasburg's residents.<br/><br/>Also a thing to keep in mind, if the story flows such that a fall from grace is inevitable, it's not the end of the world.  Aidan is specifically a Paladin/Sorcerer going into Eldritch Knight.  Paladin isn't his main class, feature-wise. Sure, if his paladinhood deactivates his saves will nosedive, but it won't otherwise impact his survival in a major way.  Might even make his redemption/further moral degeneration a plot point if that comes to pass.