adventurous dark mysterious medium-paced
Plot or Character Driven: A mix
Strong character development: Yes
Loveable characters: Complicated
Diverse cast of characters: Yes
Flaws of characters a main focus: Complicated
adventurous slow-paced
Strong character development: No
Loveable characters: Yes
Diverse cast of characters: Yes
Flaws of characters a main focus: Yes
adventurous mysterious tense medium-paced
Plot or Character Driven: A mix
Strong character development: Yes
Loveable characters: Yes
Diverse cast of characters: Yes
Flaws of characters a main focus: Yes

Never seen an author use 'whilst' so often and so unnecessarily 
adventurous mysterious reflective tense medium-paced
Plot or Character Driven: A mix
Strong character development: Yes
Loveable characters: Yes
Diverse cast of characters: Yes
Flaws of characters a main focus: Yes
adventurous dark mysterious tense medium-paced
Plot or Character Driven: A mix
Strong character development: Yes
Loveable characters: Yes
Flaws of characters a main focus: Yes
adventurous mysterious medium-paced
Plot or Character Driven: Character
Strong character development: Yes
Loveable characters: Complicated
Diverse cast of characters: Yes
Flaws of characters a main focus: Yes

What if Snowpiercer + The Southern Reach/Area X? This book is what. 
mysterious tense medium-paced
mysterious slow-paced
Plot or Character Driven: Plot
Strong character development: Complicated
Loveable characters: N/A
Diverse cast of characters: Yes
Flaws of characters a main focus: N/A

I wish I connected more to the characters so that this book would have left me in awe and wonder, instead of confusion. But as it is, or as the book might say, I was not ready to board the train.

The human connection themes could have been explored more. Or instead, the nature theme. But as it stands, the book seemingly tries to say a lot without really saying anything.