There are three Reagents in the game, which will help Anna grow her abilities. These can be found in each of the three Dungeons in the realm. Once found, they can be taken to the reagent receptacles in each of the three towns.
In Westhaven, place a Potent Candle in the Tome of Knowledge to gain +1 Intellect. Potent Candles can be found in the Necropolis.
In Rygard, place a Life Seed in the Life Chalice to gain +1 Life Force. Life Seeds can be found in the Ancient Forest.
In Hom, place a piece of Power Ore in the Golden Statue to gain +1 Strength. Power Ore can be found in the Lost City.