In this video guide I will show you how to meet the root mother. This happens pretty early in the game and is the first person you will meet for an achievement. Once your quest says find the root mother, you know you will be close. Just keep making progress until you see where I am at on the map. The area will also have a smoke covered doorway to let you know something is about to happen. Just talk to her, defend her, then the achievement will pop once you complete the quest.