"Damnit..alright, let's do this the right way then!" he said, walking into an alley. Without wasting time, he casted greater invisibility on himself and rushed out to cast another spell, this time at the slaver. It was a simple spell, one called 'Sugestion'. Whispers filled the man's head, telling him to delay selling the slaves because if he waits a few more days, then most likely he could get better price. (DC is 21)