Chapter 91: Papermaking Ice-Making Method

and even yellow iron ore on the back mountain of a village called Koushan. The sulfur reserves were enormous!Now that we've also discovered saltpeter, the material for making gunpowder, everything is... our new house is built, I'll marry you again then. I'll make you the most honored bride. On our wedding night, we'll finally finish what we couldn't today. I promise..."Yang Lin's eyelids grew heavi...