Homunculus (The Dwarf in the Flask).Olivier reports to Bradley at Central where she admits to killing Raven but convinces Bradley to let her take his place. Meanwhile, Hawkeye uses a coded message to tell Roy Mustang that Selim is a homunculus. In his lair, Father daydreams of the time in ancient Xerxes, where the nameless slave, known only as Number 23, met Homunculus, a being in a flask who was created from his blood. It gave Hohenheim his current name and taught him the basics of alchemy. Homunculus promised to make the King of Xerxes immortal, and told the king to make a gigantic transmutation circle. At the appointed time, Hohenheim stood at the center of the circle with Homunculus, and the whole country, including the king became a sacrifice. When Hohenheim awoke, everyone in Xerxes was dead, except for him and Homunculus who had created a body shaped like Hohenheim for itself, calling itself Father. Back in the present, Hohenheim encounters Izumi and Sig, noticing her poor health for committing the ultimate sin. He rearranges Izumi's organs so that her blood can flow better, saying that she can't die yet and explaining that he is a philosopher's stone in human form.