Opening the door with the dragon, you find yourself in a room decorated in a gothic style. As you are studying the decor you suddenly start feeling a terrible burning in your stomach.
Looking down at your belly you see it seems to be swelling slightly. Your skin starts feeling itchy and when you lift up your shirt you see green, scaly skin and a segmented yellow belly.
You feel your hands change and look at them to see they have turned to claws, and then instantly your shoes are ripped apart due to your huge clawed feet.
A long arrowheaded tail bursts out of the seat of your pants and a pair of batlike wings sprout from your shoulderblades. The burning feeling in your stomach seems ready to erupt, and as it does so your neck slighly extends, your face grows into a reptilian muzzle and you belch a plume of fire into the air.
You are a dragon, all right!