Evaluating your options thoroughly, you decide that the best course would be to repair the mythal to the best of your ability. While a full restoration would take years and demand a small fortune in reagents, research, labor... mending a few fraying strands of the Weave here and there would get the Demon's Ingle in working order long enough to exact some advantage from it. And if, by chance, you were to make a few augmentations to the design that placed a geas on those wearing the Ingle's products, compelling them to obey you...

A few contingencies here, a redundancy there... by the gods, you are a genius. Truly, it is a shame that you are surrounded by troglodytes that could never appreciate the magnitude of your splendor. You'll need to cast some preliminary divinations, of course. And a way of concealing your work just in case - a few quasi-real illusions should-

"Mistress Phaere!" A familiar voice calls to you, far too giddy and pitched such that it resembles the scraping of chalk along a cavern wall. "The negotiations have been opened! Your presence is required immediately!"