[ Praise isn't something Setsuna's good at accepting, so he merely gives an acknowledging nod. He does get the vibe that this isn't something this stranger offers lightly.

...Hmm. Could this be Chang Wufei? ]

No specific code-words yet. We've been discussing the idea of both a mailing system and unrelated, covert dead drops for conveying information related to codes, or anything especially sensitive. The idea is to hide that information within books and journals, with the dead drops disguised as small lending library kiosks. The mail system can both serve its apparent purpose and act as a smokescreen for the true nature of the "libraries".