Mummy Windings

No matter how good the clothes are, they wear out over time - even those that are woven from cobwebs. And only the windings in which ancient mummies are wrapped are not subject to decay. I wish I knew what the secret is!.. If you can, bring me the mummy wrappings from Theo's tomb. Perhaps they are impregnated with a special composition, and I would like to calculate the recipe...