What Do Reverse Cyborgs Want? In Book 2, the heavenly visitor must quickly find a new human host to assist in its rescue plans. It reveals itself to park ranger Jace Kuliak as a stock Hollywood sci-fi space alien and pleads with him to help it “phone home.” By this time, the “War in Heaven” has spilled over into our solar system, and Jace must bear the burden of deciding the fate of humanity.