Starting from the shores and extending a few kilometres into the sea was a pavement made of soil and stones. It was a disharmonious mixture, barely held together by the saliva of the Crust-Mantles.
Crust-Mantles shuttled to and fro above it, transporting soil further into the sea. They were creating a long path, spanning 20 metres wide each. Once the paths were created, they dropped the soil into the sea to fall onto a structure beneath.
It was a tunnel, extending deep into the sea and making a large arc around the territory of the Floating Spiders.
The tunnel was made by interweaving of silk ropes, produced by Transformer Floating Spiders using their Unranked Skill, Web World. The ones who had taken charge of the entire operation in the sea was the Web Family. The remaining two Families were in charge of other operations.
Cylindrical columns were joined together one after another—like compartments of a train—to extend the tunnel.
