The Clone Wars: Secret Missions 3: Duel at Shattered Rock

Star Wars: The Clone Wars Secret Missions 3: Duel at Shattered Rock, previously known as The Space Siren, is a young readers book in the Star Wars: The Clone Wars Secret Missions series, authored by Ryder Windham and published by Grosset & Dunlap. It was released on March 3, 2011.

Publisher's summary
''Young Jedi Nuru Kungurama and the clone troopers of Breakout Squad receive orders to escort new allies across space to Coruscant. But the diplomatic mission turns deadly when the identity of a mysterious saboteur is revealed and Nuru encounters a deadly armored warrior with ties to Count Dooku. This series is written by acclaimed writer Ryder Windham, who has authored over 50 Star Wars books.''