In the end, Eli took the mechanical box at Vivica's insistence.

After taking it away, he also researched a little and found that the locks of the mechanical box are indeed quite interesting. They are the first ring level, the second ring level and the third ring level. As long as the level is enough, it can be opened.

In fact, this is similar to the pharmacist. There used to be another sub-professional in the wizarding world, called mechanic, with pure mechanical knowledge and mechanical refining, and there are also differences in level.

The content of this chapter is being updated...