Sometimes, even if two people share a language, what they're getting out of a conversation is completely different. What seems like a friendly, idle chat to one may be an important, serious or risky exchange to the other. Two history professors in Canterlot University, professors Cooke and Astra, are about to have such a discussion.
(This story can be read stand-alone, but is also part of a larger continuity of fics. Click here for a full breakdown.)
Stargazer, a perfectly normal Canterlot mare, goes to have a perfectly normal chat with Celestia about changelings. Purely for academic reasons, of course. Okay, so most of that was a lie.
A simple chat in the Canterlot University cafeteria over tea ends up having completely different meanings to the two ponies engaged in it.