You are looking for a small pocket only logbook. BYOP.
你需要寻找一个带磁铁的小袋子，只有签到纸，请带上自己的笔。
This cache is easy to search but you have to mind the customer and the muggles. People would be less if during morning.
这宝藏很容易，却需要避开顾客和麻瓜。如果你一大早来这里，你会发现周围人很少。
Please return the container back to the exact place.
请将容器放回原来位置。