(fallen london stamps by More completely normal and not on fire letters the doctor has sent to people recently:
"The good doctor has somehow caught wind of your advancements in the study of the Correspondence. He congratulates you effusively, in English... and in the Correspondence. One can just do these things as a Correspondent, it seems. Whether one should is another matter altogether. In any case, it's more material for your studies."
"The good doctor, in his letter, thanks you cheerfully for your correspondence. In turn, he invites you to learn something of the Correspondence. From anyone else, it would have been a threat. From the doctor, it's just another opportunity for him to spread knowledge of another kind of Better Words. (Even if those words are on fire.)"
Meanwhile, Rafael's calling card:
"A polite and tasteful reply. Even the card itself is more tasteful than one might expect from a seasoned Silverer - solid, subtly patterned paper, an elegantly handwritten name, a single underline. No viric or cosmogone flourishes. No inlaid mirrors. No Attar finger-marks. Thank God."