Green Lantern #8 (2011)

'Secret of the Indigo Tribe' Part 2! On the Indigo homeworld, Hal Jordan and Sinestro are trapped, powerless and on the run - with the entire Indigo Tribe in hot pursuit! Their situation grows even more dire when we learn the Indigos' deadly secret! Plus: Why Indigo-1 is so interested in Hal's predecessor, Abin Sur?