After John had everything arranged in Storm City, he teleported directly to South Harbor.
The moment he arrived at the harbor, he could feel a very strong dark power emanating from it.
Simultaneously, even before his Teleport Spell was complete, he sensed a dark spell coming at him. Instinctively, John cast a defensive spell.
While he successfully ensured his safety, his Teleport Spell was disrupted, and John found himself transported to a location about a dozen miles away from South Harbor.
From here, John could see endless demons from the Dark Realm launching an attack in the direction of South Harbor, where a blue defensive shield was in place.
Without much thought, John knew that this blue shield must be the defensive barrier released by Ocean Sage.
After some consideration, he decided not to head directly to South Harbor.
He could begin by eliminating the demons from the Dark Realm on the outskirts.