Joker Presents A Puzzlebox #7 (Of 7) Cover A Chip Zdarsky

The final pieces fall into place! The Joker s tale has come to an explosive end and has blown up in everyone s faces. Now Commissioner Gordon is racing to pick up the pieces, but various attacks across Gotham City culminate in an assault on the GCPD itself. Who is behind them and why? The answer to that riddle will make you laugh and laugh and laugh.