Attack on Titan Vol. 20The Survey Corpss quest for the truth of the world inside the Walls has brought them back to Titan infested Shiganshina District, a mere stones throw from Erens childhood home. They have come to execute Erwins final gambit, reclaiming Wall Maria and the secrets of humanitys past. But the Colossus Titan, the Armored Titan, and the Beast Titan have been waiting for them, and saving humanity will require the most difficult sacrifice the Corps has ever