THEY TOOK OUR WORLD BY STORM. NOW WE MUST FIGHT BACK. #1 New York Times bestselling author D.J. MacHale is back with the third book in The SYLO Chronicles.?Once again， Tucker Pierce and friends must fight for their lives against the better-equipped SYLO. All bets are off in Strike—with twists so big readers will never see them coming—while the action and pulse-pounding suspense remain as high as ever. Fans will be sure to devour this incredibly satisfying conclusion.