Okay, before you can enter the dungeon, you must correctly name the overlord of Castle Whiteshield. To find out his name, follow the directions of the statue at the entrance: "Seek the four warriors, north before south, east before west, substract the castle's name, and you'll pass the test". So what does it all mean?

First of all, the four warriors are the statues in the corners of the castle. Do what the first statue told you to do, and visit them in the following order: Northeast, northwest, southeast, southwest. Write down their names after each other and you'll get JODELLE LEADBEST ASTRIEL TESHY. Now, you are to "substract the castle's name". In other words, any letters in the word WHITESHIELD don't count. When all those letters are removed, you are left with the answer: JOABARY.