Pretty much, yeah. Remilia the Elder's particular specialty as an alchemist was medical preparations, but she was also a keen inventor, and her passion was making substances and artifacts that had spells built into them, so that even non-magic-using people—or people, like her husband, who had innate magical traits but weren't spellcasters in the usual sense—could use them to do magic things.

The perpetual ink is one example; the corresponding ink in A Name to Call Her Own is another; this "witch postal system" is a third, and one that was once in common use (among people who could afford the materials) all over Europe. In D&D terms, the wax in the seal is the material component in this particular spell; writing the address with the correct ink is the somatic component; and putting it in a mailbox is the ritual component.

(And the address is really only symbolic, as we see here. It's addressed to President Auriol at his official residence, but it reached him where he actually was.)

--G.
-><-
Benjamin D. Hutchins, Co-Founder, Editor-in-Chief, & Forum Mod
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