Surely you have seen the circle of summoning below us? Only there will you be able to draw forth an unbound voidwalker.$B$BUsing these runes, you will be able to draw it forth, and then you must dominate it through strength of arms and magic.$B$BWhen it is subdued, it will be indentured to you. Come to me then, and I will elucidate the spell of summoning, so that it may serve you to whatever end you wish.