The Cask · Chapter
XIX: The Testing of an Alibi explained
Lefarge travels to Charenton and Brussels to verify M.
What happens
Lefarge travels to Charenton and Brussels to verify M. Boirac's alibi. He confirms Boirac's presence at a restaurant in Charenton and at a hotel in Brussels, and checks details about his brother's house in Malines. After thorough investigation, Lefarge concludes that Boirac's statement is true, implying his innocence and shifting suspicion toward Felix.
Themes in this chapter
Deception and Appearance
Lefarge uses deception, posing as a friend and using a false name, to extract information from witnesses.
Crime and Investigation
The chapter focuses on the systematic verification of an alibi as part of a murder investigation.
Justice and Innocence
Lefarge's conclusion that Boirac's alibi is true points toward his innocence and the pursuit of the real culprit.
Characters to notice
- M. Lefarge
Conducts the investigation into Boirac's alibi, traveling to Charenton and Brussels.
- M. Boirac
The subject of the alibi investigation; his statement is tested and found true.
- François
Mentioned as having taken Boirac's bag to the Gare du Nord.
- M. Chauvet
Receives Lefarge's report at the Sûreté.
- Mr. Felix
Implicated as the alternative suspect if Boirac is innocent.
Key passages
“He therefore came to the deliberate conclusion that the pump manufacturer's statement was true. And if it was true M. Boirac was innocent of the murder, and if he was innocent—Felix …”
Lefarge decided that Boirac's alibi was genuine, meaning Boirac did not commit the murder, which then pointed to Felix as the likely killer.
The climax of the chapter where Lefarge's investigation shifts suspicion to Felix.