Lone Castle Escape

Is it possible to get out of an old castle in which you inadvertently found themselves at the will of fate. Window in a locked room, though out the flower alley, but boarded up with thick iron bars, and the exit door locked with a key. The room is cozy, but is it worth waiting for help in a place where it is unlikely to succeed? Hurry to find items that will help you escape from this golden cage.