d him a great deal of time and effort."This artisan said reverently, 'This thing was invented decades ago and was very popular at first. It uses gunpowder as a fuse to fire projectiles, with the power... them leaving here."Your Highness, is something the matter" Su Pingbei asked halfway there.He knew that the East Palace was very busy lately, and tomorrow was the day of the palace exam. Unless it was...