C617 Both of us are each other's goal

Just then, in ten minutes, Xia Lei found a clue that people missed. This clue was hidden in the floor tiles of the tomb. He had found a very valuable clue to the pattern, the words, the lines, the combination and arrangement of his brain.

The first treasure trove was excavated two years ago, but no one found any secrets hidden in the floor tiles of Princess Young-mei's tomb