After a mix-up at STAR Labs, Harley Quinn and Batgirl have been fused into a single body with a split mind! Batman has sent you to return them to the batcave, so they can be unmerged. When you finally find them, the fusion stands before you...

The double shakes its head, ginger hair waving side to side "I swear.. I-I mean WE swear! I mean... Please, it's me, Barbara!" The composite of Harley and Barbara shakes it's head, the jester bells on Harley's half jingling. "Don't forget me, Harley Quinn talking! We're totes fused, baby! Two sirens, one body!" The other half shakes its head again, Barbara taking control. "You can still tell when I'm talking, right? I just hope dad doesn't find out about this..."