Red Lanterns Vol. 5: Atrocities (The New 52)

The Reds have found their newest recruit: Supergirl! Guy Gardner is hardly equipped to handle a teenaged Kryptonian Red Lantern, so he heads for Earth and hand her off to her cousin, Superman! But Superman is...unimpressed by Guy's leadership skills (or lack thereof).

But even the power of Supergirl can't make Guy Gardner's team of Red Lanterns unstoppable. Guy wasn't counting on the arrival of the deadliest Red yet: The Judge! When she makes her ruling, the fate of the Red Lanterns, Earth and an entire space sector will hang in the balance!

Collects Red Lanterns #27, 29-34, Red Lanterns Annual #1, Green
Lantern/Red Lanterns #28, and Supergirl #31.