Hollow World by Michael J. Sullivan
Review originally written and posted to Goodreads on August 12, 2016: I'm sitting here, just having turned off the audio version of this and my head is swimming with thoughts. This is a beautiful story that questions the core essences of humanity, love, religion, and life. Like the protagonist, Ellis Rogers, I went on this journey expecting a classic time travel story and instead encountered something else entirely. Ellis Rogers is tired of his ordinary life. As a brilliant scientist not living up to his potential, he has always dreamed of something bigger, but never managed to achieve it. Instead, he settled. He married the first woman he was with and he clung to the first friend he ever had, even though both of those choices weren't really right for him. Ellis isn't happy. He isn't even really miserable. He just... exists. Then like another scientist living below his potential, Walter White, he is diagnosed with a fatal illness and death becomes the wake...