They call themselves Syloand they are a secret branch of the U.S. Navy. Sylo's commander, Captain Granger, informs Pemberwick residents that the island has been hit by a lethal virus and must be quarantined. Now Pemberwick is cut off from the outside world.
Tucker believes there's more to Sylo's story. He was on the sidelines when the high school running back dropped dead with no warning. He saw the bizarre midnight explosion over the ocean, and the mysterious singing aircraft that travel like shadows through the night sky. He tasted the Ruby-and experienced the powers it gave him-for himself.
What all this means, Sylo isn't saying. Only Tucker holds the clues that can solve this deadly mystery.
Look to the sky because Pemberwick is only the first stop.
'If you're a fan of The Maze Runner and Alex rider, you might want to pick up Sylo . . . . A fast-paced read and a huge cliff-hanger.' EW.com
'With this extremely high-octane story that's the equivalent to a summer movie blockbuster, MacHale kicks off an apocalyptic trilogy sure to leave readers demanding the next instalment.' Booklist
'A relentlessly fast-paced, intriguing, expertly-written tale that leaves you breathless and satisfied, yet wanting more. Highly recommended.' James Dashner, New York Times bestselling author of the Maze Runner series
'Sylo will have your pulse racing and your head spinning. Make plans to stay up all night finishing it.' Michael Grant, New York Times bestselling author of the Gone series
'Sylo is D. J. MacHale at his finest - he's crafted a book full of friendship, mystery and heart-pounding, spine-tingling adventure.' Holly Black, New York Times bestselling author
'Packed with thrilling chases, daring escapes, and breathtaking action sequences, Sylo will grab the reader's attention from the first page and not let go until the final, stunning conclusion!' Michael Carroll, author of The Quantum Prophecy
'I have no fingernails left! I chewed off every last one of the while I fretted over the fate of Tucker and his friends. Well done, Mr. MacHale.' PJ Haarsma, author of the Softwire series