The Bewhiskered Astrologer opens a book that burns with the crest of the Brass Embassy. There, on a page marked with forbidding runes, is a symbol. Your newly invented symbol. Oh dear.
A magnificent symbol, tying perfectly into the arcs of prophecy that the Astrologer has been plotting. He rewards you handsomely for your insight. ‘This will show that charlatan Shoshana!’