[Lava]

Neither do I think it's Skie-related, in the sense it's nothing in the code itself, but in the engine. Subtledoctor too said none of the two situations included Skie, as one was in SoD and later he did not save her, thus it wasn't her that messed his savegame. If anything, I would blame the engine processing some action incorrectly. Skie shouldn't be in the Temple Ruins, I listed the areas on which she spawns and Temple Ruins are not on the list.