Flammable!

From: Detective
Description: It just crossed my mind - we’ll set the stinker on fire! Its bandages are very dry so they’ll burn in a flash and the mummy itself is just an embalmed corpse. What do you think? We need something burning, preferably an object we could shoot or throw - maybe a dart? Then we can run away if our idea doesn’t pan out.
Completed: You guys are reckless. And you, Detective... at last you’re adapting to your situation. I’ll be glad to help. Here, take these darts and a lighter. There’s not much gas, but it’ll be enough.