The Foundry, located directly under the Green Lantern Corps Central Battery, is where the Guardians of the Universe forged the Green Lantern rings, as well as creating the Manhunters. From – Emerald Warriors #9 Share this:TwitterFacebookRedditTumblrPinterestLike this:Like Loading... Post navigation War Of The Green Lanterns (Emerald Warriors #9) John Stewart Feels Guilty About Killing Mogo