"The docks are the expeditionary army's footholds in the Sea of the Moon, as well as our Forward Bases."
"Without these docks, we would have no way to launch this expedition."
"After fighting in the sea for a while, soldiers have to return to the docks to recuperate. Otherwise, the seawater will gradually erode them, turning them into Dream Creatures that sink into the deep sea."
"As for what's above us..." Sidney smiled. "There's nothing."
"Huh?"
"Didn't your tutor teach you? Beyond the Celestial Sphere we live on is the universe. There's no air in space. It's a vacuum, and that's what's above the Sea of the Moon."
"There's a vacuum above the sea?"
Elliot felt as though his brain was about to explode. The moon's gravity could hold on to seawater, but not the air outside?
Besides, water's boiling point in a vacuum was below zero. This seawater should have been boiling.
Then Elliot caught himself and shook his head. He should stop applying real-world physics to this supernatural world.
The Sea of the Moon here was directly connected to dreams, after all. It was only natural for it to be a little unusual.
"This isn't a real sea. It's a flowing dream, which is why we can breathe here, but also why it can assimilate us."
"It's dangerous here, but it also protects us, keeping us from coming into contact with the vacuum outside."
That was true enough. At least they didn't need spacesuits. With this world's level of technology, they might not even be able to make them, much less issue them to soldiers for an expedition.
"So we're actually traveling submerged in a dream. The dream is suitable for us to live in, but it will assimilate us. What's outside will hurt us, but it also