Quest for the Throne

You are the elder sibling born into the Royal family. It was your birthright to inherit the throne upon the King's death. Your younger sibling, along with a group of corrupt guards, has devised a plan to overthrow you. This has left you exiled from the kingdom. Disguised as a pauper, and having the knowledge of all the secret passages under the castle, you have made it into the kings study. You have sixty minutes to find proof of your birthright and escape undetected before the castle guards return. If you fail.....well, there will be no need for birthrights........