Chances of me guessing the ending = Nil(e)

As usual Agatha Christie gives her best and one of the most intriguing thriller.
mysterious medium-paced
Plot or Character Driven: Plot
Strong character development: No
Loveable characters: Complicated
adventurous lighthearted mysterious relaxing fast-paced

listened to the audiobook, not a huge fan of the narrator (did not affect this rating)

I just felt underwhelmed by this story. it takes forever to get going, it's a big cast and they're all almost caricatures, in a way. the reveal at the end was pretty meh, and I felt like it was just a lot of guessing that got him to that conclusion. did not make me want to take a river cruise anytime soon, that's for sure 
adventurous mysterious reflective fast-paced
Plot or Character Driven: Character
Strong character development: No
Loveable characters: Complicated
Diverse cast of characters: No
Flaws of characters a main focus: Complicated
challenging dark emotional mysterious reflective tense fast-paced
Plot or Character Driven: Plot
Strong character development: Complicated
Loveable characters: Complicated
Diverse cast of characters: No
Flaws of characters a main focus: Yes
adventurous mysterious fast-paced
Plot or Character Driven: Plot
Strong character development: No
Loveable characters: Yes
Diverse cast of characters: Yes
Flaws of characters a main focus: Complicated
adventurous challenging dark mysterious tense medium-paced
Plot or Character Driven: Plot
Diverse cast of characters: Yes
mysterious slow-paced
Plot or Character Driven: Plot
Strong character development: Complicated
Loveable characters: No
Diverse cast of characters: No
Flaws of characters a main focus: No