E Phillips Oppenheim

Nothing is as it seems at Wood Norton. A Zeppelin on a midnight flight over the English coast nearly crashes, leaving behind its observation car-and a Homberg hat. A mysterious stranger who appears from nowhere bearing news of Lady Cranston's brother, who languishes as a German prisoner of war. And Sir Henry Cranston, who refuses to come out of retirement at a time when his country is in need, but prefers instead to spend his time fishing. The fate of nations and of two lovers separated by war depends on discovering the secret of... The Zeppelin's Passenger