Bluff: Dress up like a bandit, then run through the camp in a panic shouting "GO GO GO GO GO LET'S GO!!!!" Roll bluff. If even mildly successful, all the bandits think "Well, he must know something we don't know," and follow you. You lead them right into a bear den. Or a snake pit. Or anything that gets them easily killed. Maybe since you're a sorcerer, you create a magical trap. Counter Monkey episode all about Bluff: http://spoonyexperiment.com/counter-monkey/counter-monkey-the-bardic-knock-spell/
This is great! Everyone in my group right now does "I roll diplomacy" and I thought that's what I had to do. I spent 5 minutes talking down to the captain of the guard to get an extra ring last time and everyone looked kind of shocked so I thought I wasn't supposed to do that. Now I'm going to go all out.