onlt thing everyone always misses is taking her to maka cave.

up to the 3rd floor past the parrot quest. take her to the fence move inbetween the fence till a cut scene happens. she'll talk about her father and being with you etc... blahbalh..

then take her back to ghost isle with fred. to the room where you got fred, to do the quest. after killing the naga leave thru the way you came in for a cut scene then she dies ;-;

and yea make sure you have the taboo before she dies not possible to get if reborn.