Set one year after the Lorien Legacies (I Am Number Four, et al.), the alien Loric Garde are joined by human teens, including protagonist Taylor, who have developed Legacies such as telekinesis. The government collects these teens into the Earth Garde to fight future invasions, though many humans see them as an abomination. A glacial first half gains momentum toward the satisfying conclusion. (c) Copyright 2018. The Horn Book, Inc., a wholly owned subsidiary of Media Source, Inc. No redistribution permitted.