The only other place where I feel like nothing can touch me is when I’m reading one of the many Agatha Christie novels I’ve borrowed from Alice, in a vain attempt to catch up with her knowledge of the Queen of Mystery, losing myself in the spirals of deceit and deception.
-- Iris (Chapter 2)

Importance: After solving the murder of Brooke Donovan in the previous novel, Iris has felt more reckless than ever and has been hanging out with bad-boy Cole. This quote is important because it shows that Iris finds solace in Agatha Christie books.

My brain is not computing: Park with a sharp, stabby object in her hand; Kennedy unmoving on the ground, red seeping onto the front of her dress. Their fight earlier in the ballroom, Park leaping at Kennedy…Kennedy, the classic asshole victim, like something straight out of one of Agatha Christie’s novels. It finally snaps...
-- Alice (Chapter 5)