Recruited by blood. Bonded by fate. Buried by corruption. Saving the world always comes at a price. Kidnapped and destined to become a guardian for Celestial City, Ellie Monroe finds herself struggling with more than just defying the laws of science. Energy is neither created nor destroyed, which is true, but for Celestial City, energy is much more than what it seems. As a guardian, mastering practical applications for transferring energy is harder than it looks, especially when you have a secret that is dying to get out. Ellie finds herself on a fate that intertwines her life with Kade Aldridge, the first keeper of Celestial City, who is sworn to protect his guardian at all costs. But will his secrets cause the city’s destruction?