Collects Green Lantern #7-12 (2011) and Green Lantern Annual (2012) #1.
*Hal Jordan and Sinestro find themselves investigating a crime that leads them deep into the homeworld of the Indigo Tribe. As their situation grows more and more dire, the unlikely team of these two Green Lanterns uncovers a secret that will change the GL Corps forever! *Source: dccomics.com