"Mrs. Hudson Hostage Incident Chapter": Professor Moriarty, deducing that Mrs. Hudson is Sherlock Holmes' only weakness, kidnaps her. However, her charming and gentle personality throws a wrench into his plans, leaving him strangely unsettled... "The Great Aerial Battle over the Dover Strait Chapter": Professor Moriarty plots to halt the newly established airmail service. The postal plane's pilot, Tommy, Mrs. Hudson, and her late husband Jim were once fellow aviators. Holmes takes on the task of guarding the plane, but...