No Owner's Manual

What would you do if you were suddenly given a sword that just magically appears and disappears, but only when you need it to, but you had no directions for using it... No Owner's Manual? Ceilidh Masters has just that happen to her one horrible night when she's 15 years old. She has to learn to deal with this Sword and the compulsion it gives her to eradicate evil. She spends years learning what s...