START YOUR ENGINES! The Clown Princess of Crime. The Maiden of Mischief. PhD. Call Harley Quinn anything you want, but don’t you dare try to take away her cuddly-wuddly new best friend from another universe! Clear the crosswalks and fasten your seatbelts as Harls leads the Justice League and a skyful of multiversal champions through the streets of Gotham City on a physics-bending, law-breaking, rubber-burning race to the finish…that will leave one champion’s life hanging in the balance!
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