George Alec Effinger 
Nick of Time 

The world’s first time traveler embarks on a multiverse misadventure in this madcap novel from ‘;one of SF’s distinctively nutty voices!’ (Chicago Tribune). Time travel: been there, done that or at least Frank Mihalik has. On February 17, 1996, Frank discovers the secret to time-travel, or at least he thought he had. He must embark on a voyage through time and space in order to set things right. He must survive parallel universes in which–Oh my!–Shirley Temple plays the awesome role of Dorothy in The Wizard of Oz! Only his love, Cheryl, can save him, but he is almost tricked by a parallel-dimension Cheryl and potentially wrecks his love life. How will Frank survive this wild jerk through these dark counter-universes? And will our universe ever be the same?