Now an official State Alchemist, Ed takes a closer look at Tucker's chimera experiments and begins to realize there's something very wrong going on.

Ed reports back to Mustang in East City, where discussion of Doctor Marcoh and the Philosopher's Stone leads to a duel between Ed and the colonel.

Ed and Al are forced to go in search of another source for Marcoh's book after Lust, Gluttony and Scar burn the First Branch Library to the ground.