Gravity is the Thing

Twenty years ago, Abigail Sorenson's brother Robert went missing one day before her sixteenth birthday, never to be seen again. That same year, she began receiving scattered chapters in the mail from a mysterious guidebook, whose anonymous authors promised to make her life soar to heights beyond her wildest dreams.Now, two decades after receiving those first pages, Abi is invited to learn 'the truth' about the book... A smart, unusual, wickedly funny novel.