It's a thing called Red Dragon. Apparently it's a prequel to Hannibal Rising, and the killer calls himself the Red Dragon. I think it might actually be Hannibal. I didn't actually read the book, my one friend just showed me that particular quote.
Yeah like how at the end of games that will be a series of things they always say the generic "thanks for playing, now go wait in eager anticiaption for our next big thing"