The royal mausoleum might sound very grand, but in China, who had thousands of years of history and an equally old culture, there were plenty of emperors' tombs belonging to various dynasties. Yan Dynasty was just a small splash throughout the stream of time that formed China. Besides, with this sort of background, this dynasty which still had royal descendents and had yet to have their thoughts of restoring their dynasty vanquished from their minds, was bound to never be able to see the light. It would never be tolerated or accepted by the imperial court.
Yan Dynasty's royal mausoleum was a secret that had to be hidden. Murong Clan did not even dare to openly worship their ancestors there!
*****
"This place has good atmosphere."