Harley Quinn has the cosmic opportunity of a lifetime-becoming the “Galactic Angel of Retribution” for the Lords of Chaos and Order! But to prove herself worthy, she must survive six suitably bizarre trials, including teaming up with Batman, getting turned into a giant bug, fighting space aliens, and surviving Gotham City after its transformation into a deadly medieval fantasy RPG. Collects issues #55 and 57-63.

Harley is trapped in S.T.A.R. Labs with no escape! Abandoned and alone, the former Clown Princess of Crime must face down a horde of invading interdimensional aliensÉbut is she locked in there with themÑor are they locked in there with her?

"Harley Quinn's story starts anew here in this graphic novel tale tied closer to the DC Universe!"--

There are eight million stories in the naked city. Here's one you might have heard: an out-of-town girl moves to the Big Apple after a bad breakup, looking for a new job, a new love, and a new life. Oh yeah, and she's a criminally insane super-villain who just got jilted by a psychotic clown. Did we not mention that yet? She's Harley Quinn, and she's come to Coney Island looking to settle down and cut loose. But where Harley goes, trouble follows. Someone's put a price on her head so big every bounty hunter in Brooklyn is looking for her. Now this newly minted Noo Yawker has to count on her motley crew of new neighbors—and a few of her good old bad-girl friends—to get the last laugh on whoever's gunning for her.

Harley was certain she could have it all: She could be the world's best landlord, protect Coney Island from the scum of the Earth, woo Mason Macabre, work her day job as a psychiatrist, volunteer at the puppy shelter...but that's a whole lot of spinning plates, and eventually they're bound to start breaking! What happens when a psychopath cracks up? Is it possible for Harley to go even more insane?!

Time to hit the polls, New York City. Harley's on the ballot in Harley Quinn Vol. 5: Vote Harley! If you thought politics were a dirty business already, wait till you get a load of Quinn! Ever since Harley Quinn relocated from Gotham City to the Big Apple, corrupt Mayor DePerto has been a thorn in her side-and a knife in her back, and a bullet in the face, and a mallet to the noggin. But our favorite reformed super-villainness isn't taking this lying down. She's taking her battle to the ballot box and running for Mayor of New York City herself! But if Harley wants to really rock the vote, it won't be easy. She'll have to call in favors from friends and foes alike, including some of the nastiest bad guys in Batman's rogues gallery. And from her gal-pal Poison Ivy to her old frenemy the Penguin, everyone's taking sides. It all comes down to the craziest Election Day in city history. Will New Yorkers have to call Harley "Hizzonner"? Or will the power-hungry mayor make her and her supporters pay? Find out in Harley Quinn Vol. 5: Vote Harley-an action-packed tale of democracy in action from Amanda Conner, Jimmy Palmiotti and a national committee of talented artists, concluding the fan-favorite run!

You read that right. It's Harley Quinn vs. Apokolips. The whole. Entire. Planet. Wait... what? A new era for Harley begins here in Harley Quinn Vol. 1, as writer Sam Humphries takes charge! While on a tropical vacation, Harley Quinn is kidnapped by two Female Furies from Apokolips--and they're making her an offer she can't refuse: join the Furies, get super powers and do anything she wants! It's a sweet deal, and all Harley has to do in return is hunt down rogue Fury Petite Tina. The bad news: Petite Tina is anything but petite! Harley Quinn's story starts a new era in this brand-new graphic novel! Writer Sam Humphries jumps behind the wheel, beginning with this all-new Vol. 1 jumping-on point. Collects Harley Quinn #43-49.

When Harley Quinn awoke one morning from troubled dreams, she found herself transformed into a horrible vermin! ÒWhat thÕ heckÕs goinÕ on?Ó she thought. But it wasnÕt just a dreamÉit was the next trial of Harley Quinn!

The hits just keep on coming as Harley Quinn and Poison Ivy crawl away from the rabbit hole that is the Mad Hatter’s endless tea party and get back on the road- but when they take a rest in a seemingly abandoned dinosaur theme park, they may not be the only clever girls hanging around...

After an unimaginable loss, “The Trials of Harley Quinn” come to a screeching halt. As Harley attempts to pick up the pieces and move forward, Mirand’r comes to her with a new offer…one that she can’t refuse!