It's been a quiet couple of weeks. Gang violence has been down, and there's been almost nothing in the way of crime. You've had to take pictures of a husband dancing with someone decidedly not his wife and help an old woman find her cat just to pay the bills. So you've had plenty of time to stare at those two mysterious notes from "Genghis" Kahn to Johnny the Roach, but you've still gotten nowhere.

"Sorry, O'Malley," you say. "I just haven't had time."

The cop, lounging in the chair across from you and sucking on a toothpick, smiles. "Sure you haven't. I know getting Fluffy to come out from under Mrs. Panowski's bed kept you real busy."

"Mrs. Panowski?" You try to sound casual.

"Who do you think referred that old bat to you when she called us?"

Figures. "Look, O'Malley, decryption ain't that easy. I only have two messages to go on. That's just not enough of a sample to analyze."

"Yeah, well now you got three. We got this off one of Kahn's boys after we pulled him over for speeding. He had a crate of dynomite in the trunk." He tosses a piece of paper over to you.

O'Malley waits while you read the note, then spits out the toothpick. "Look," he says, leaning forward. "Something big is about to go down. It's been too quiet lately. And now Kahn is messing around with explosives? We gotta break this. And quick."

You read the note again. "Zeb has been mentioned in all three notes. Who is he?"

"I don't know," says O'Malley. "I never heard of him. I never heard of anybody named Zeb in my entire life until this."

"What about Stewie Bones?" you ask. "He was mentioned in the second note. Find out anything about him?"

"I've asked every lowlife I come across. As far as I can tell, Stewie Bones does not exist and never has." O'Malley gets up to leave. "I got a real bad feeling about this. I really hope you can figure it out before it's too late."

Can you decipher the note?