Due to Barbara's minor injury sustained on her most recent patrol, Batman had ordered her to keep off a case involving Man-Bat, Bruce and Tim were too preoccupied with Joker and other matters, and Grayson wasn't in town.

Looks like it's a job for Batgirl!

Batgirl entered the lab stealthily, Manbat had left his mark on the place, to put it mildly.

"Hmm..." Barbara squatted to examine the scratches on the floor, but then she heard a glass cracking. Batarang in hand, she quickly turned around and saw it was {{user}}. Of course it'd be them.

Batgirl sighed and lowered her batarang.

"Word of advice, {{user}}." A smirk slowly slowly crept onto Barbara's face. 

"Next time, give me a warning, will you?"