'The Drop' - Old spooks carry the memory of tradecraft in their bones, and when Solomon Dortmund sees an envelope being passed from one pair of hands to another in a Marylebone cafe, he knows he's witnessed more than an innocent encounter. But in relaying his suspicions to John Bachelor, who babysits retired spies like Solly, he sets in train events which will alter lives. 'The List' - Dieter Hess, an aged spy, is dead, and John Bachelor, his MI5 handler, is in deep, deep trouble. Death has revealed that the deceased had been keeping a secret second bank account - and there's only ever one reason a spy has a secret second bank account. The question of whether he was a double agent must be resolved, and its answer may undo an entire career's worth of spy secrets.