Full Metal Alchemist 2: Akaki Elixir no Akuma

Loosely based around the events of the first few episodes of the anime (with some plot elements borrowed from the manga), Edward and Alphonse learn of a frightening phenomenon sweeping Amestris; people in many regions are vanishing without a trace, supposedly spirited away by "monsters". In Resembool, Edward and Alphonse meet an enigmatic alchemist named Jack Crowley and an entity called the Phantom. It seems that they have some connection with both the disappearances and the strange creatures (known as Golems) appearing around the countryside. When sends the brothers and to investigate a village plagued by these monsters, they meet Arlen Glostner, an archaeologist who is studying the ancient civilization of Lebis. Edward and Alphonse soon find themselves headed for the ruins of Siam-Sid, the capital city of Lebis, to discover the truth behind the Golems and the puzzling disappearances.