Plague Doctors are powered by a blatant disregard for the boundaries of standard chemistry and physics. Steampunk Plague Doctors are powered by...coal. Also clockwork, gears, and probably, like, some kind of retrofuturistic-sounding dynamo thing.
All the details!
Specs: 8.5(w) x 10.5(d) x 11(h) inches. Polyester fiber, ages 0 and up!
