In a (failed) effort to be cool in school, Lizzie hurts the feelings of major she-geek Audrey Albright. It's a total mistake, and Lizzie wants to apologize - but Audrey's disappeared. She was last seen in the girls' room, crying. And Lizzie can't find her anywhere! So who's got the 4-1-1 on the missing Audrey? After putting together a list of suspects, Lizzie follows a trail of clues to a science-fiction convention, where Larry Tudgeman may be her only guide through the underworld of geekdom. But is Lizzie reallly ready to go where no cook kid (like ever!) has gone before?