"This box is a lock!?" Not only Ye Qing, but even Zhao Chengshuang widened his eyes.
Since ancient times, boxes have been used to contain things, and locks have been added to the outside of boxes. When did boxes become locks, used to lock things?
"Look here." Lin Zhen Nan pointed to the corner of the box and said, "There's a small crack here, and an opening at the opposite corner. It's said this is the key to opening the box. You must get a special key to open this box and take out the Gold Silk Armor. That's why they say this box is actually a lock."
Ye Qing looked at the corner of the box and found it was indeed as Lin Zhen Nan described; there was indeed a mechanism there. Ye Qing tried several times but still couldn't open the box to take out the Gold Silk Armor.
