The Duke Who Went Underground
He dug fifteen miles of tunnels beneath his estate, furnished them with a 250-foot library and a ballroom for ten thousand square feet, and never invited anyone. Servants who crossed his path were required to face the wall. His bedroom door had a letterbox so he'd never have to speak. William John Cavendish-Scott-Bentinck, 5th Duke of Portland — the man who built a world underground and left the one above it strictly alone.
