The Dark Age Exhibit is a room in Treacherous Mansion reassembling the Gloomy Manor, with the knights in the guard hall. There Luigi opens a cabinet and captures a few strong hiders and strong greenie, then found a bucket . The bucket is needed to grow a spiked ball in jungle exhibi, then feed to a flying trap, and rescue the toad, the dark age exhibit also have a treasure chest which contains a book to unlock an E gate to the front entrance.