Fullmetal Alchemist - The Meaning of Equivalent Exchange

Now that Edward has had his limbs replaced and he is ready to go, he and Alphonse leave to Central to take the State Alchemy Exam. While they're on the train to Central, Edward overhears somebody speaking about a mysterious power near the old ruins of Xerxes. At the time, he disregards the information- But years later, after the Liore fail, he remembers, and decides to investigate.
Can it return what they have lost?
I do not own Fullmetal Alchemist or any of its characters, or the Latin language! I only speak Fullmetal Alchemist and Latin. ;)
P.S. One more thing: You CAN skip the first chapter, because it's a really detailed version of the Edward and Alphonse's Fullmetal Fail when they tried to bring their mother back. The second chapter is when it REALLY starts to go off track.