What is Agatha Christie's best novel?

In my opinion, 'And Then There Were None' is the best. It has a really gripping and unique plot. Ten strangers are lured to an isolated island and then start to die one by one in a way that follows a nursery rhyme. The sense of mystery and the way Christie builds up the tension throughout the story is masterful.

One of Agatha Christie's best - selling novels is 'And Then There Were None'. It is a classic mystery novel with a gripping plot that keeps readers on the edge of their seats. The isolated setting and the gradually decreasing number of characters add to the suspense.

I think 'Murder on the Orient Express' could be considered her best. It's set on a train, which is a very unique and confined setting for a murder mystery. The solution to the mystery is both unexpected and clever. Christie weaves together multiple storylines and motives of the diverse characters on the train, making it a very engaging read.

Agatha Christie's 'The ABC Murders' is often regarded as one of her best-selling works. It features a clever detective and a puzzling crime that keeps readers engaged until the end.

One of Agatha Christie's best-selling novels is 'And Then There Were None'. It's widely loved and has sold millions of copies worldwide.

One of Agatha Christie's most popular and best-selling novels is 'Murder on the Orient Express'. Its intricate plot and memorable characters have made it a favorite among fans of mystery fiction.

Agatha Christie's 'The Murder of Roger Ackroyd' is another of her best-selling novels. It's known for its unexpected twists and turns that keep readers on the edge of their seats.

Well, it's quite hard to pinpoint just one as her works are widely loved. However, 'Murder on the Orient Express' is often regarded as one of her best-sellers. It has a captivating plot and memorable characters.

Her best-selling novel is 'And Then There Were None'. It's widely popular and has sold millions of copies worldwide.

Some of her best novels include 'Murder on the Orient Express'. It has a complex plot with a murder taking place on a train full of diverse and suspicious characters. Another great one is 'And Then There Were None', where ten people are lured to an island and killed one by one in a very mysterious way. Also, 'The ABC Murders' is notable, with a serial killer leaving clues in alphabetical order.