Episode 29: The Untainted Child (2003 series)

As the Elric brothers are laving Yock Island, a strange boy emerges from the foliage, with no memory of how he arrived. Inexplicably, he can perform alchemy without a transmutation circle. Even stranger, he can transmute his own body, merging with his surroundings! Izumi is compelled to take care of the child, but Ed has other plans.