# XV: The Terrible Catastrophe explained — The Big Four

> Chapter companion for The Big Four by Agatha Christie.

## What happens

Poirot reveals the existence of the Big Four to the Home Secretary and the French Premier, detailing their identities and aims. Despite skepticism, he warns of the threat and prepares for his own death. Later, a bomb disguised in a matchbox kills Poirot, but Hastings survives, vowing to continue his work.

## Themes in this chapter

### Global Criminal Conspiracy

Poirot reveals the Big Four's vast criminal organization aiming to destroy social order and establish dictatorship.

### Sacrifice and Loyalty

Poirot sacrifices his life in the explosion, and Hastings pledges loyalty to carry on his work.

### Deception and Disguise

The bomb is hidden in a matchbox, a deceptive trap set by the Big Four.

## Character check-ins

### Hercule Poirot

Reveals the Big Four to officials, prepares for his death, and is killed by a bomb in his lodgings.

### Captain Hastings

Narrates the chapter; survives the bomb and vows to carry on Poirot's mission.

### Sydney Crowther

Home Secretary who hosts the meeting and receives Poirot's sealed envelope and key.

### M. Desjardeaux

French Premier who is skeptical of Poirot's claims, especially regarding Madame Olivier.

### John Ingles

Confirms the existence and power of Li Chang Yen, supporting Poirot's claims.

### Dr. Ridgeway

Attends to Hastings after the explosion and informs him of Poirot's death.

## Key lines

> It is the greatest mistake to underestimate your adversary. Remember that, mon ami.

Never underestimate your enemy; that is the most critical error you can make.

_Poirot emphasizes the importance of respecting the opponent's capabilities._

> By a miracle you escaped—Poirot—did not!

You survived by a miracle, but Poirot did not.

_Dr. Ridgeway informs Hastings of Poirot's death after the explosion._

> Poirot may be dead, but his spirit lives on. I will carry on his work! Death to the Big Four!

Though Poirot is dead, his mission endures, and I will continue it. Down with the Big Four!

_Hastings vows to avenge Poirot and pursue the Big Four._

## Links

- HTML: https://www.betterreads.online/discover/the_big_four_se/chapters/xv-the-terrible-catastrophe
- Book: https://www.betterreads.online/discover/the_big_four_se
- All chapters: https://www.betterreads.online/discover/the_big_four_se/chapters