The Strange Case of Mrs. Hudson's Cat

The case of the scientific aristocrat -- The case of the missing energy -- The case of the pre-atomic doctor -- The case of the sabotaged scientist -- The case of the flying bullets -- The case of relative jealousy -- The case of the faster businessman -- The case of the energetic anarchist -- The case of the disloyal servant -- The case of the deserted beach -- The strange case of Mrs. Hudson's cat -- The case of the lost worlds.