The Red Queen
The Knight's Dungeon
Long ago there was a famous knight, Serrin of Suther. He was a brutal combatant, taking pleasure in not only defeating his enemies but humiliating them. He often left his foes alive, but severely maimed. In his old age he grew exceedingly paranoid of his many enemies. He built a grand, underground home a days ride away from Phlan and stockpiled it with years worth of food. The only entrance in was through a single tunnel that led deep into the earth. In the final years of his life he called all his servants in for a grand meeting. Once they had all arrived he collapsed he tunnel. Known ever heard of him again, but it is said he buried himself with a fortune of wealth.
A few adventurers have tried to dig their way in, but the garden above the estate has grown particularly wild and dangerous in the many years since the event. It somehow feels even more hostile than the surrounding forest.