There is an artifact market in my desert

I contracted a piece of desert for greening, and I accidentally discovered that there is a magical market downstairs by looking at Lin Lookout, which is different every time! Sometimes it’s a farmer’s market selling magical fast-growing agricultural products, sometimes it’s a black technology auto show, or a market for rare antiques, a market for magical skills and technology, a market for magical medicines such as Dali pills and Jiuhuan Hunhundan, and sometimes even for the future. Technological robots, selling some magic weapons, and even selling scripts, novels, songs, and entertainment omniscience plenum robots... Every time there is a surprise in the past!