The message comes by carrier pigeon actually, which is a pretty weird way to deliver a message but of course, it's thematic. A very pretty looking brown pigeon swoops down out of the sky to wherever Hannibal just so happens to be that afternoon and holds out its leg. The message is short and simple:
Got a job for you. Meet me in front of the sheriff station at dusk. No show, no job. Keep it a secret, rewarded very well.
- Hal
P.S. Burn this.
And that's it. Of course, if Hannibal chooses to listen to the message, he will find the Sheriff in front of the station at dusk. He'll be greeted with a tip of his hat and one word:
"Deputy."
And then he holds out a small notebook. Looks like Hannibal's been chosen for one of those roles that were mentioned. Good luck.