Overview
Elixir is the debut young adult novel co-written by American entertainer Hilary Duff with Elise Allen. It was available at booksellers on October 12, 2010. It is the first in a series of books that Duff became committed to write. Elise Allen collaborated on the first book with Duff, and became committed to work jointly with her on the others. The book is now a New York Times Best Seller.
Plot
Clea Raymond is a talented photojournalist and the daughter of a United States Senator and a famous neurosurgeon. Several months before the story begins, her father disappeared while on a humanitarian mission and is presumed dead.
Clea looks over some old photos of herself and notices that a mysterious man wearing black appears in the background of all of them, including several where he is floating in the air. She brings up the phenomenon to her friend Ben, who informs her that her father had noticed the man years earlier and investigated for a while before deciding that he was a harmless guardian spirit. Ben also tells her that her father was looking for the Elixir of Life when he went missing.
While on trip to Brazil, Clea runs into the man from her photos and chases him down. When she catches him, he explains that his name is Sage and that he is a 500-year-old immortal. He and his girlfriend were members of a secret society in Renaissance Italy that studied the Elixir of Life until one day, a group broke into their hideout to steal the elixir. All in attendance were killed, except Sage, who was wounded and taken hostage. His kidnappers force him to drink the elixir to see if it works, then they drink it themselves. Sage escapes and wanders the world for 500 years. The whole time he has been pursued by two organizations. One called The Saviors, who seek to find Sage and use him to create more elixir, and one called Cursed Vengeance, descendants of his kidnappers who have been cursed to live horrible lives until Sage is killed.
From Wikipedia (CC BY-SA 4.0).