Crystals of Stoichio

Isadora wants to recover a powerful necromancer before the Crestfallian Empire invades, but is having difficulty doing it using known magic and items because of how he was imprisoned. She has things to build, places to hide, and people to kidnap. But these darn meddling kids keep getting in her way.   Themes: Good versus evil; desire for justice is greater than the desires of tainted hearts.   Only by gathering the Crystals of Stoichio can the heroes find the final resting place and remove the necromancer once and for all.