Derek didn't want to think about who might have betrayed him, but the first thing he had to do was to free himself from the chains before whatever was creeping up behind him.
He is not a Lockhart for nothing, and most of all he is the firstborn, the eldest brother, although not naturally the one who will take over the Lockhart fortune, but he is also an heir.
When heirs and heiresses brought up, it is not because they will get the power of the Empires, but because the Golden Royals have more secrets, such as the adulteration of the human body and the brain.
Besides that, there are forces in the darkness which can only move if one's own the special ID. Nobody knows what kind of ID it is, if it is a jewel or if it is another kind of object, only the Master of the Golden Royal or the heir to whom the power's given.