All Clear is the second half of the time travel Blackout/All Clear duo by Connie Willis, set in World War II. While I found Blackout a bit frustratingly repetitive in places, All Clear was a whirlwind of plot twist after plot twist, with an emotional range of unfathomable despair to shock to tentative joy. Willis will leave you gasping aloud in both excitement and frustration as the three main characters attempt to return to 2060 from WWII. Willis leaps back and forth between different times, places and characters, thus weaving in an element of mystery (pay attention to the date printed at the beginning of each chapter). Blackout and All Clear are must-reads for any time travel or historical fiction fan, but as a message about the strength of the common person undergoing unimaginable hardship and sacrifice, these two novels would be enjoyed by anyone.