In a sealed envelope left in his mail cubby, written on a heavy page of parchment in remarkably crisp, orderly lines—

Mister Ellis,

I am holding various kindnesses, small favors, and indeed may consider escalating to conversation and even daily pleasantries in reserve until my demands are met.

Please provide the sum paid for the book in question. I will be very cross with you otherwise. I am quite serious.

Best Wishes, Solemnly,
W.P.