One Choice Can Save You

Three years have passed since Tris' death. Tobias' memories of Tris are no longer so painful; he can look back on them with happiness. He misses her, but he knows there's no way to get her back. That is, until Caleb tells him otherwise. After three years of endless work, Caleb has perfected the Erudite time travel formula. Can Tobias travel in time to save the love of his life?