Fight the dragon.

"We should fight the dragon", you say. "If we wait here, it will burn down the door."

"Maybe", Charlie replies, still unconvinced that fighting the dragon was the best action.

"Listen to this plan", you say. "We open the door, and trick the dragon into poking her head in. Then we can bind her so that she can't breathe fire."

"That might actually work", Charlie says.

Determined to set this plan into motion at once, Charlie and you stand on either side of the door. Charlie opens the door, and you both wait for the dragon to enter. Nothing happens.

"What's going on?" you mouth at Charlie.

He shrugs.

Still nothing happens. It seems like the dragon has gone. Before Charlie can stop you, you poke your head around the door, sure that the outside area will be deserted. It's not. The Short-Snout is sitting opposite the door, her mouth open ready to spit fire. She must have predicted the trap you set for her, and set a trap of her own. When she sees you, a jet of blue fire shoots from her mouth, setting you alight.