Upon hearing about the issue with the missing letters, I immediately wrote a note through magic on a special paper I gave to one of my people working inside the Drusilla household. The note has a simple set of instructions: "Burn all letters going out. None should reach their intended recipients."
As for the recipient of the instructions, it was one of the husbands of the countess that does the dirty work for her. After all of this is over, his compensation would be a divorce, a new identity and a residency in Sklavryet.
After the note was read by him, the note cleared up automatically, destroying all evidence of the communication. The item looked just like any plain paper. The paper had a simple magic enchantment I placed for easier communication since this world had no mobile phones. My insider at the Drusilla house wrote on the note that just recently cleared up: "Consider it done".
