Hollywood and the literary world are mourning the loss of Jackie Collins. The author died on Saturday at the age of 77-years-old after a nearly six year battle with breast cancer. Collins sold more than 500 million books and had many in Hollywood nervous about whether their lives would be copied in one of her novels. The author is survived by her children and older sister, actress Joan Collins. Joan Collins took to Twitter to say, “Farewell to my beautiful brave baby sister. I will love you and miss you forever. Rest in peace.”