The First Sister trilogy by Linden A. Lewis is a science fiction trilogy consisting of three books. The first book, The First Sister, follows the story of a priestess of the Sisterhood who is forced to spy on her new captain, Saito Ren, but ends up falling in love with him. The second book, The Second Rebel, follows the story of Lito val Lucius, an elite soldier of Venus who is tasked with tracking down and killing his former partner, Hiro. The third book, The Last Hero, concludes the trilogy. The books are available in both paper and digital versions on Amazon.