sentences:  When he departs with Hal Jordan's group of light-wielders, he commands his Corps to gather at Korugar and protect it while he is away.In the aftermath of "Blackest Night", the Sinestro Corps and Green Lantern Corps maintain a fragile truce where neither will attack each other.However, while helping Hal Jordan and the ring-wielders of the other five corps investigate the abduction of the emotional entities, Sinestro is separated from his ring and imprisoned in the Book of the Black, along with the other five members of the group, with Hal only just managing to escape with their rings.