
Originally Posted by
Heretic
According to "The Book of Adam and Eve," a part of the pseudographical texts, Cain had a twin sister named Luluwa which meant beautiful, before Abel and his twin sister Aklia was born. Luluwa was to be bethroted to Abel as per the recommendation of Adam and Eve; this sparked the beginning of Cain's hatred and jealousy towards Abel. When Cain killed Abel, he took Luluwa away.
"The Book of Adam and Eve" made mention of five children: Cain and Luluwa (twins), Abel and Aklia (twins), and of course, Seth. It is an interesting read, as it details the trials and sufferings that Adam and Eve supposedly have undergone when they were stripped of their "godliness."