The answer awaits you in Batman: Detective Comics Vol. 4: 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 superpowered 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.

Brought to you by writers MARIKO TAMAKI, NADIA SHAMMAS, and SINA GRACE with artists IVAN REIS (Green Lantern), DANNY MIKI (Spawn, Eternals, Moon Knight), and DAVID LAPHAM (Deadpool Max, Fables).

Collects Detective Comics #1059-1061!