"This side path leads to the Empty Mirror Sea."
"The reason this side path was built is because we need to salvage the... Hollow Men drifting downstream below."
With Gengar's explanation, Angel more or less understood the reason behind it.
Generally speaking, the Tidal Surge Calamities of the Empty Mirror Sea arose without warning. No one knew when they would appear, where they would appear, or in which direction they would surge.
However, where there were ordinary circumstances, there would naturally be exceptional ones.
The Empty Mirror Sea at the edge of the Mirror Realm was the most exceptional place for Tidal Surge Calamities.
Its peculiarity was that no matter where a Tidal Surge Calamity occurred along the edge of the Mirror Realm, it would share one common direction of flow—the inner regions of the Mirror Realm.
And the place reached by this side path lay along the only route leading into the inner regions of the Mirror Realm.
Whenever Adanis dealt with the Noah Clan in the past, she would directly throw them into the outer reaches of the Empty Mirror Sea. Their locations were random, but in the end, those Hollow Men would all pass through here.
In the past, although they could salvage the Hollow Men, it took quite a long time because they had to search for them deliberately.
Even knowing this was the route every Hollow Man had to take, whenever a Tidal Surge Calamity appeared, they still had to retreat. Only after it receded could they enter again.
And at that point, they had no way of knowing whether the Hollow Men were still in the outer reaches or had been swept into the inner regions by the Tidal Surge Calamity.
Later, at Second Treasure's suggestion, this side path was built. At several points