Sea Monster Tide
"What's the situation?" Leon asked.
"It's the sea monster tide, my Lord. The sea monster tide has arrived. You can directly see the situation at the river from atop the rock walls," Nyfarella reported while pointing over the wall to the closest river.
However, Leon did not need to scale the rock wall to see the situation; he directly used the realm spirit's omniscience to observe the overall situation in the realmship.
He immediately saw several ten thousand sea monsters, big and small, pouring into the Bone Sea through the river channels like a tightly packed group, leaving little-to-no gaps in between them.
At the same time, their rapid movements rocked the usually calm river surface in waves.
God knew how many more sea monsters were still fighting to enter the realmship from beyond the western edge.
Leon paid particular attention to the sea monsters' strength which varied from Low-rank Lesser Demons to Mid-rank Arch Demons.