Blind as a Bat

Origin
Blind since birth, Vicky Bruce decided to undergo an experimental treatment to provide her with eyesight... using bat DNA.

Although not gaining eyesight, per say, she was "rewarded" with the ability to guide herself in the dark by means of a sonar system. She can also "see" the blood boil in others at the very moment they decide to do something criminal! By sucking the blood out of them, she prevents their heinous act from being committed and feeds herself at the same time!

Powers and Abilities
As she flies, she emits a high, squeaking sound, unable to be heard by human ears. As the sound travels outward, it hits objects and bounces back. These sound waves tell her where objects are so they can be avoided.