Move left and forward. Move to the door and talk to the left guard. He will let you in to see the governor if you are wearing the jacket, hat and sword from the basement in the house. Talk to the governor and he will say that his quill is broken. Give the pen to the governor to receive the sapphire. Time travel to the kingdom:

Move right and talk to the man to learn that he used to be the cook. Give the slice of pizza to the man to receive the cook's certificate. Move right and forward to the castle door. Give the cook's certificate to the guard. In the Cook mini-game, the King wants three dishes to be prepared. Select the cook's notebook at the top-right corner of the screen to see that there are fourteen dishes. Only dishes 5, 10 and 13 need to be cooked for the king: