Royal Escapes: The Royal Mystery

For the last 2 years you have been planning to steal the queen's crown jewels as you believe that you are the rightful heirs to the throne. You are of the right lineage, your grandfather was Christian the 10th, the king of Denmark.

Your father and Christian the 10's eldest son, Karl Leopold, was chosen to become the king of Denmark since he was the firstborn. But when he was just a young teenager, his younger brother sent him into exile for a crime he had not committed and thus could not become king. But you know the truth and have now chosen to prove that you are the rightful heirs to the throne.
Your family has infiltrated the royal castle with positions such as royal car runners and candlestick makers. And now you're ready. You know where the queen hides the crown that hides the secret. In her personal library at the castle. You know you do not have much time before she and her guards return. Find the crown that reveals the secret and hurry out again before you are arrested and forever locked in the dungeon.