Batman Detective Comics Vol 04 Riddle Me This

The Riddler is back in Gotham City in a big way, becoming a media personality and using his newfound influence to wreak havoc on the Dark Knight. As Batman chases down clues to put an end to the Riddler's machinations, the clock ticks away for the citizens of Gotham, whom Edward Nygma has placed in the line of fire... Then, in Gotham Girl, Interrupted, the super-powered Claire Clover returns to the city that helped ruin her life...to get psychiatric treatment at the new Arkham Tower. But when a murder mystery rocks Gotham Girl's newfound semblance of normalcy, she finds someone unexpected at the heart of the crime...herself. Collects Detective Comics #1059-1061.