Because the yard belonged to Chen Li, and he had the intention of settling down here for the long term.
This time, the construction of the underground shelter was naturally free of the mindset of making do with what was available.
The underground shelter had a ceiling height of about eight meters and covered an area of over a thousand square meters. Coupled with a concealed and well-designed ventilation system, standing inside felt neither stuffy nor cramped.
The lighting underground wasn't provided by oil lamps but by a kind of treasure called Bright Light Pearls.
These pearls, the size of a baby's fist, were said to be the eyeballs of a certain subterranean creature from foreign lands. They could absorb spiritual energy on their own and emit a faint white light. Their price was also quite steep; one pearl cost one mid-grade Spirit Stone.