Because the book involves many groups of Schilling Empire, which left one relic after another hundreds of thousands of years ago or even longer ago, many places look similar to those that solved the case, and they all found out the truth bit by bit at first, so they are highly recommended.
If you feel that you can't stand it, you can also look at the record of unusual creatures, which is very fast and directly enters your own rhythm.
The biggest feature of these two books is that after reading them, you will feel, ah, if you think about it seriously, is there such a thing? Why didn't you find it before?