unbreakable vows Unbreakable Vows kill people who break them. Unbreakable Vows The latter It kills you if you violate it. Unbreakable Vow Unbreakable Vow harrypotter.wikia.com/wiki/Unbreakable_Vow unbreakable vow Unbreakable Vow harrypotter.wikia.com/wiki/Unbreakable_Vow