"Prisoner of the Ghost in the Iron Mask" and "A Ghostly Guest"
Prisoner of the Ghost in the Iron Mask
The gang is smuggled into a strange country to help the Princess break an ancient cures place upon her mother. Long ago, a suitor courted the Princess but since he was not of Royal Blood, he was forbidden to marry her and placed a curse that no other may take her hand. Now, her granddaughter is faced with the same curse but the gang exposes the ghost as the son of the suitor, who was looking for revenge on the Princess' family for the affront to his father.
A Ghostly Guest
The gang is called in to investigate a strange old house in Scotland where a ghost haunts half of the house. But the legend does not quite fit since the ghost now resorts to stealing from the guests. The gang sets a trap and when they catch the ghost they reveal it to be the maid. She was stealing from the guests in order to get enough money so that the current owners would not sell the house and she could keep her job. She knew where all the valuables were kept since she would case the room while cleaning it.