Gr 9 Up-Following on the heels of the action-packed I Am Number Four (HarperCollins, 2010), The Power of Six opens with the introduction of a new character, Number Seven, also known as Marina, who, with her Garde, Adelina, has been confined to a convent in Spain for several years following their arrival by spaceship from the planet Lorien. One afternoon, while exploring the Internet for her allotted 10 minutes, she comes across a reference to John Smith of Ohio, which gives her the impetus to flee her relatively safe hideout and search for the remaining survivors. As they age, the Lorien children's Legacies, or powers, are beginning to emerge and strengthen, leading them to take the fight to the heart of the Mogadorian stronghold. While this second book in the proposed six-book series has many of the same weaknesses of the first-a lack of character development, pedestrian dialogue, and uneven continuity-the nonstop action and violence-packed fight sequences will keep fans of the first novel happy. Think Transformers and Teenage Mutant Ninja Turtles instead of Heinlein's Starship Troopers. Readers should expect mayhem and monsters rather than traditional science fiction, but the popularity of the first book and the movie will create a demand for this and subsequent titles.-Jane Henriksen Baird, Anchorage Public Library, AK (c) Copyright 2011. Library Journals LLC, a wholly owned subsidiary of Media Source, Inc. No redistribution permitted.