This sequel to Dark Castle has our formerly nameless hero now known as Prince Duncan continuing his adventures after he toppled the Black Knight's throne and was dropped by a gargoyle in Trouble 3. With Merlin's help, Prince Duncan finds his way behind the Black Knight's throne where there is a fireplace and mantle. At the start of each new game, Duncan tries to take a torch on the wall beside the fireplace, and the entire wall spins around to reveal a large Ante Room containing 5 pedestals for holding orbs. Your mission is to collect all 5 orbs to open a gate to lead you to a final duel with The Black Knight.