At the carpenter's house, talk to the old man before 3 pm (except rest days and rainy days). You can't get the wood at first. After four or five times, you can cut it freely. Well, if you give him a golden egg, you can go to a hidden cutting point where there are many big trees and mushrooms. If you are nervous about the golden egg, you can save it in the following ways: talk-give it to the ore-give it to the golden egg (at this time, because the old man recently accepted a gift, he won't ask for the golden egg, but he will still let you enter the hidden cutting point)