Hercule Poirot Timeline and Summary

Poirot boards a train out of Syria.
He arrives in Stamboul, planning to take a vacation there.
There is a telegram waiting for him at his hotel, calling him back to London immediately.
Poirot boards the Simplon Orient Express.
Mr. Ratchett asks Poirot to help guard him. Poirot says no.
Poirot hears someone speaking in Ratchett's room at 12:37 a.m.
He peeks out of his door and sees a woman in a red kimono in the hall.
M. Bouc informs Poirot that Ratchett has been murdered.
He asks Poirot to take over the investigation.
Poirot speaks to Mr. MacQueen.
Poirot sets up his court in the dining car and interviews the passengers.
Mrs. Hubbard finds the murder weapon and presents it to Poirot.
Poirot finds the Wagon Lit conductor's uniform in the Swedish woman's luggage.
Poirot finds the red kimono in his suitcase.
The solution finally comes to Poirot.
Poirot finds out the Countess's true identity.
The Princess admits to Poirot that the handkerchief is hers.
Poirot interrogates Mary Debenham, whom he knows was the governess of the Armstrong family.
Poirot offers two solutions to the crime.