So it turns out that in order for me to progress, I must get bombs by completing the bomb quest. But, I am having trouble completing it. I found the woodcutter's son, but it is in the black dungeon, and I don't know how to progress inside it. I tried looking up a guide, but all I found was a gameplay video about it, and it only covers the first dungeon and the lantern which I already completed. Can you please give me any directions?