The main purpose for the first two chapters is to convince the reader that we indeed have a great and interesting mystery to solve! This is a short chapter and is designed to “drill-in” this message. It also offers an independent tale on Alien Board Game, in which we introduce the first deep idea in this book – our universe is nothing but a game. The scientists practice “reverse engineering”; they study the final product, the nature, and try to decipher the rules of this game (laws of nature). Mathematicians start from the opposite end. They make their own rules (axioms) and from them they build their own game (mathematical theories).