LordEntrails
Hero
A really good tuna poke bowl.
Or @Quickleaf answer since that was better
Long term, I like the placing the pearl idea. And it can turn devious later when the party learns (maybe) of why. She keeps having them place pearls in places to seemingly help people, but all the time it is to draw power from those with natural magical talent (sorcerers?) so that she gains their power/mana and they never manifest those powers. Maybe its not evil, maybe it is...
Or @Quickleaf answer since that was better

Long term, I like the placing the pearl idea. And it can turn devious later when the party learns (maybe) of why. She keeps having them place pearls in places to seemingly help people, but all the time it is to draw power from those with natural magical talent (sorcerers?) so that she gains their power/mana and they never manifest those powers. Maybe its not evil, maybe it is...