1 of 5
The voice heard in Ratchett's compartment spoke ___, leading Poirot to conclude that it was not Ratchett.

2 of 5
What is not included on the list that Poirot makes to sort the possible suspects?

3 of 5
What item in Ratchett's compartment does Poirot deduce was left as a faked clue?

4 of 5
When Poirot asked the passengers to write their names, who did not take the pen in their right hand?

5 of 5
To obscure her Christian name, Poirot believes the Countess intentionally spilled what on her passport?