Basic plot points:

Vale No’Cheir was trapped in an amulet by an angered sorcerer

The amulet can allow its owner to possess the powers of what is trapped within

The sorcerer is unable to summon Vale’s power and throws it away

Tethys comes to own said amulet by trading a peddler

Vale is able to come to her in dreams by night and whispers by day

He convinces her to journey to find the item that can permanently free him from the amulet

This item requires a death in order for Vale to be freed

He intends for Tethys to be the sacrifice, but he grows to enjoy her company and wants her to belong to him

Vale decides that the sorcerer who trapped him can instead be the death required

He grooms Tethys’s natural magic abilities so that she can harness his power and defeat the sorcerer