Belbo's False Courier
Foucault's PendulumAglie exploits Belbo's invented map story to make him carry a suitcase connected to a bomb threat, then leaves him exposed to police suspicion.
increasing
Bearing strength in each event
decreasing
The Claim of a Map

A Bluff Becomes Leverage
Belbo's provocation
Belbo tells Aglie that he knows the map's secret and that its solution is simple. He intends the claim to mock Aglie's fascination with hidden knowledge.
Aglie's response
Aglie appears intrigued and asks for details. Belbo believes he has gained the upper hand without realizing that the other man may be testing him.
The Suitcase Favor

An Innocent Errand
A request
Aglie asks Belbo to carry a suitcase and leave it on a reserved train seat for a contact in Florence. Belbo agrees, trusting the relationship and expecting ordinary books inside.
Hidden contents
The suitcase contains explosives. The bearded passenger's intervention makes Belbo appear to be the person who brought the bomb aboard.
An Isolated Suspect

No One Will Hear Him
A public description
News reports describe the passenger whose clothing and occupation match Belbo. The suitcase has transformed a private favor into apparent evidence of terrorism.
The trap closes
A caller directs Belbo to Paris and demands the map. With Aglie missing and De Angelis refusing help, Belbo has no credible way to explain himself.
Shortly before Belbo's departure
On the morning of the Bologna train journey
The day after the train incident