Green Lantern Corps : ring quest / Peter J. Tomasi, writer ; Patrick Gleason with Carlos Magno, pencils ; Drew Geraci ... [et al.], inks ; Guy Major, colors ; Steve Wands with Phil Balsman, letters.
During the aftermath of the Sinestro Corps War, the peacekeepers of the Green Lantern Corps are sent on a mission to locate yellow Power Rings that will prevent the formation of a new Sinestro Corps, but in order to collect all the lost rings, the peacekeepers must face Mongul.