XX. OH U!

The German Periscoper: “Ach, Himmel! Dot most be der peautiful
Ben Nevis of vich ve ’ave ’eard so mooch!”

XXI. THE ENEMY IN OUR MIDST!

German Spies training a Carrier Pigeon in the Fastnesses of a
London Boarding House

XXII. THE ENEMY IN OUR MIDST!

An Extra Special Constable discovering a German Waiter in the Act
of laying the Foundation of a Concrete Gun-bed