Russian spies Andreas Zaleshoff and his sister Tamara are tipped off and commission a Spaniard, Ortega, to pursue Borovansky on the train, follow him to his hotel in Austria, and get the plans back.

Zaleshoff realises that 'Robinson' is the assassin and propagandist-for-hire Stefan Saridza, accompanied by his henchman Captain Mailler.

When they arrive at Linz, Sachs asks Kenton to carry the envelope off the train and bring it to him at a particular hotel later that night.

The reader realises that Sachs is Borovansky and Kenton is now in possession of photographs of military plans which could alter the course of European history.

Kenton leaves Zaleshoff's safe house and crosses into Czechoslovakia by tunneling under the border fence.

[2] The characters of Zaleshoff and his sister Tamara - also a Soviet agent - also play a significant role in Ambler's novel Cause for Alarm.

For that one might have to inquire into banking transactions in London, Paris and New York with the eye of a chartered accountant, the brain of an economist, the tongue of a prosecuting attorney and the patience of Job.

One would have, perhaps, to note an increase in the Hungarian bank rate, an 'ear-marking' of gold in Amsterdam, and a restriction of credit facilities in the Middle-West of America.

One would have to grope through the fog of technical mumbo-jumbo with which international business surrounds its operations and examine them in all their ghastly simplicity.

It was directed by Raoul Walsh and starred George Raft as the protagonist (renamed Joe Barton), Sydney Greenstreet as the antagonist, Colonel Robinson, Peter Lorre as Zaleshoff, and Brenda Marshall as Tamara.