Chapter 91: Papermaking Ice-Making Method

eyes widened in disbelief, then grew even larger as she asked in astonishment, "You mean that you can create weapons as powerful as heavenly thunder using just saltpeter""No, this is impossible!"Befo...It is now the middle of the month.The night was deep, a round moon hung high in the sky.Inside the Yang family home, everyone sat together, watching Xiao Jiu calculate.