Quote:
If you've already had a burial, your villagers have "learned" how to bury the dead and will do so of their own intiative

True, but they only bury the dead once the game is opened, so the funeral should have been spotted. That said, it is possible that REnergy did miss the funeral, so clicking on the gravestones (if any) might find her. If you haven't yet solved the graveyard puzzle, did you perhaps leave the game closed for some time without checking it? I seem to remember reading here that the skeletons do disappear after a while, although I don't know the specifics.
_________________________
To err is human; to arr is pirate.