Because each kingdom reflects seasons, their produce is limited. The Harvest Fairs are designed for trade.
- Winter: specializes in ice/and keys. Their land offers little to trade, so they concentrate on education and key training. Offer other seasons innovation.
- Summer: Fruits and berries and vegetables. Food & wine.
- Spring: keys/nutrients that are given/chiseled into land and trees to keep them living.
- Autumn: Clothing and textiles. Furniture.