Before he headed towards the Beckoning Moon Sword Sect, Wu Yu went to a few other larger cities or sects. He did the same as before - he found the elders in them to learn more details of the Beckoning Moon Sword Sect. 

This included brief information on the location, personnel, details known only to insiders, spirit designs, history, and more. 

At the same time, he verified the existence of the Great Ancient Ink Realm and that the unidirectional tunnels towards the Great Ancient Ink Realm were currently sealed. There were lots of legends revolving around the Great Ancient Ink Realm that drew the interest of the younger generation. However, reality told them that heading to the Great Ancient Ink Realm would be entirely unsuitable. Therefore, the five sects had sealed those tunnels away with layers and layers of restrictions. This was also because they were worried that those from the Great Ancient Ink Realm would come over through these tunnels. 

This gave Wu Yu a headache as the more restrictions there were, the harder it would be for him to get there. Perhaps he needed to negotiate when the time came. 

At the very least, Wu Yu came peacefully. 

Nonetheless, he also knew that the other party might not agree to it so readily....