"Mm. I suppose it's possible you might be telling the truth about that. In any case."
"Seven. The mage eventually gives up on whatever ritual or bargaining he was trying to perform, if that's even what was happening, and spends nearly an hour casting an incredible variety of different attack magics on our Dark Tapestry horror, using items and scrolls for it, increasing in their magnitude and spell-circle over time. The Dark Tapestry horror writhes and throws its bubbling self about, probably screams unheard in voices that would drive mortals mad, is little damaged by the spells and regenerates the damage swiftly."
"Eight. The mage finally destroys the Dark Tapestry horror with another vast explosion. Still guised as a Chelish Security, he frees the gathered sacrifices, informs them that the day's events will no doubt be classified a secret of Cheliax, and orders them to go home and say nothing of this. He pays them each a gold piece for their obedience, and states that the consequences of their disobedience will be left to their imagination."
"Nine. The next day, our single witness tiefling heads into the nearest town and reports."