Fullmetal Alchemist: Brotherhood - episode 7 - 16 May, 2009

Edward and Alphonse arrive back in Central, only to find that the first branch of the state library had been burned to the ground. Scar encounters and battles Lust and Gluttony in the sewers, resulting in a large explosion. Edward and Alphonse's new escorts, Denny Brosh and Maria Ross, direct them to Sheska, a file clerk who had worked at the first branch of the state library, but was fired for spending all her time reading. Sheska reveals that she has memorized all of Marcoh's works, and then makes handwritten duplicates for the Elric brothers. While initially appearing to be a cookbook, Edward notices that is written in a code that Marcoh created. Edward and Alphonse spend several days deciphering the hidden data, only to discover that the philosopher's stone is made from living humans. Edward asks Brosh and Ross to keep it a secret, but Armstrong learns about it using intimidation. Edward notices another hidden piece of information, locating an unused laboratory next to a prison, where raw materials for the stone were gathered. Armstrong tells the Elric brothers to stay put, but they both manage to sneak out to the fifth laboratory. Edward enters the building via an air duct, while Alphonse waits outside, unaware that he is being watched by a menacing figure. (Source: Wikipedia)