After Melina and I moved the giant wave with our ships riding on top of it, we managed to get them in the water inside the wall.
The water level rose quite a bit from our entrance, so many of the small islands were completely flooded. Still, this allowed us to keep advancing toward the mainland without having to maneuver around them.
The shores of the obsidian island were empty, without a single devil in sight. Jackson was with us, and he was able to detect demons much more effectively than us.
When he said that the coast was clear, we began to disembark and build a resting area for the soldiers, using magic to put up a few structures and a wall around us to protect us from any scouting devil.
Honestly, we had been doing this for so long that the entire camp was built in less than thirty minutes, and we had actual buildings for the soldiers to sleep, eat, and go to the bathroom without relying on weak tents.