Measuring at least the length of two football fields, Pylos Epsilon is easily the largest moving vessel in the World. It was designed solely for travelling to the shores outside of the enormous Protean hordes of eumonite, and then mining horizontally into the land to excavate the chambers. This would yield Pylos all the eumonite ore they'd ever need, and at the same time, leave Protea without their normal mass of power.

Built using lots of eumonetic techniques and technology, the black monstrosity is almost completely automated, requiring only a handful of people to run it. Its thick hull is immune to traditional methods of sea combat, and each entrance into its maze-like interior is guarded by magical monsters of Miriel's creation (one happened to be the final boss of Part II).