Question: Pittacus Lore authored books in the young adult science fiction series "The Lorien Legacies", including The Power of Six and what prequel?
Sentence (from "The Power of Six"): The Power of Six is the second book in the young adult science fiction series "The Lorien Legacies", written by Pittacus Lore (James Frey and Jobie Hughes).
Relevant evidence: Yes