Frozen

All the doors were locked and curtains were closed.

In the dimly lit room, a big white handkerchief was laid on the table. I took them out one by one delicately and placed them carefully on the hanky in chronological order. I tied the first knot with two corners and then tied another knot with the other two. The package was light. It was then put into a airtight plastic box. I confirmed the lid was tightly covered. The box was put into the freezer which tempreture was maintained at zero to below four degree celsius. This would ensure the freshness and avoid any unnecessary leakage of the content in the box.