The second level of the Thunder Soul Earth was much more difficult.
The soul beasts here had soul power cultivation above 1,500 years.
Moreover, it was even more berserk.
The first level was fine.
For example, although the Lightning Bird or the Lightning Horn Rhino would actively attack the Contract Soul Master, as long as they ran far away, they would not catch up.
Even if they fled from the soul beasts in the second level, they would still catch up and chase continuously.
It was also very easy to enter the second level. One just had to defeat a soul beast guarding the entrance on the first level.
This soul beast guard had a soul power cultivation of about 1,500 years.
If he could not defeat it, he could not enter the second level.
Every level had such a special guarding soul beast.
It should be specially arranged by the military personnel of the Thunder Soul Earth.
