Actually, this voyage wasn't much different from previous ones.
West faced such immense pressure mainly because of the Unicorne, which had been modified.
The trial voyage made him realize what his Captain intended to do: he wanted to explore the forbidden depths of the sea floor, a place no human had ever touched in this mysterious and vast ocean.
These last few days, he had constantly been dreaming, dreaming that the Captain was taking him under the waters, where sea monsters grabbed them and dragged the entire ship into the pitch-black abyss.
"Captain... are we... are we really going down there?" West asked cautiously, his fingers pinching a cigarette.
"Of course, did you think I modified the ship just for fun?"
"But... what are we going to look for on the sea floor?"
"Something that fell into a deep pit on the seabed, about 500 meters deep, I'd estimate. Just looking for something; the danger shouldn't be too great."