We should be gone by the time you read this letter. Speaking of which, we are really sorry for you two children. In the past, we were always focused on work, always thinking about fulfilling our dreams, exploring the mysteries of this world, understanding the history of this earth, and discovering the truth of the universe. However, when we really discover something, we realize that there are some things that we, ordinary humans, cannot understand and touch.
This world is really wonderful and magical. We discovered a terrifying but yet full of fantasy clue. If we follow this clue, we don't know what it will be like. It may be the salvation and glory of mankind, or it may be the end and destruction of the world.
We can feel its existence in the dark. We know that this secret is not allowed to be revealed. We know that the truth is shining brightly not far from us. And, we also know that until we bask in the light of truth, we will be swallowed up by the darkness in our path.
It will not be known to us, nor to all human beings.