[Guilt is a funny thing, isn't it? Beyond funny really. But Edward is no stranger to guilt himself. Far from it.

Then his attention is caught anyway.]

In order to transmute something, a transmutation circle is necessary. The alchemist uses it in order to focus and conduct the energy of the transmutation. Different circles accomplish different purposes.

[He'll just breeze over the fact that he and his brother don't use them anymore and add,] I could show you what they look like, if you wanted.