The First Book of Adam and Eve details the life and times of Adam and Eve after they were expelled from the garden to the time that Cain kills his brother Abel. It tells of Adam and Eve's first dwelling—the Cave of Treasures; their trials and temptations; Satan's many apparitions to them; the birth of Cain, Abel, and their twin sisters; and Cain's love for his beautiful twin sister, Luluwa, whom Adam and Eve wished to join to Abel.