what is { Move in the same circles } ?
"I've never met the owner of the castle personally. We don't move
in the same circles!"

Question

what is {  Move in the same circles } ?
"I've never met the owner of the castle personally.  We don't move 
  in the same circles!"

Answer

A 'circle' could mean an unofficial association of people or groups sharing the same interests, activities or achievements such as artistic circles ,family circle, golf circle etc....
So he means they don't mingle or socialize in the same groups or with the same people.

Answer

Going nowhere.

Answer

انا عمرى ما قابلت الرجل صاحب القلعة شخصيا  احنا مش بنلف  وندور   فى نفس  الدايرة

Answer

HI...
It means they don't have the same friends...