After leaving the Sitting and Forgetting Valley, Ling Feng once again encountered a troop led by Fang Wentong when returning to Luohai City.
It turns out that Fang Hai (one of the members of the team that Ling Feng had led, saved from Poison Wolf) and two other elites from the Northwest Army returned to the fortress and immediately reported the full details of the Infinite Cave Heaven to the Northwest Army high command.
It was only then that Northwest Army Commander Han Li understood why the Demon Clan made such a big fuss; it was to send their demon prodigies into the Infinite Cave Heaven to acquire great fortune, and in the future, when these prodigies grow stronger, they would naturally become formidable enemies of the Sky White Empire.