Teens from across time unite to prevent interstellar war in the twenty-fourth century, in this science fiction adventure. Earth is a utopia in the year 2347. Crime, disease, and war are no more. Humanity can travel far and wide through space. But when crisis strikes, the adults are powerless to help. Twenty-fourth-century teenagers are smart and willing, but they’ll need help from Operation Hourglass. With time-yank portals, humanity can search through the past to find teens with the necessary qualities to handle whatever trouble comes their way . . . In 1999, Adam O’Connor keeps ending up in trouble. After his latest dumb stunt, he’s facing suspension—only to get yanked into the future to face something much worse—a diplomatic meeting between humans and the warlike K’Lugu and Devlins. With the help of a twenty-fourth-century girl, a boy from 1938 Germany, and an enslaved child from 1883 Brazil, Adam must find a way to maintain peace, or there’s sure to be interstellar war. Maybe that school suspension looks pretty nice right about now . . . Winner of the Hal Clement Award for Best Young Adult Science Fiction Novel
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