Jean KwoksSearching for Sylvie Leehad quite a publication day.

So arrived national attention, widespread buzz, and an instant spot on theNew York Timesbest-seller list.

EW caught up with Lee to break down the books plot, themes, and lingering questions.

Jean Kwok author photo CR: Chris Macke Searching for Sylvie Lee by Jean Kwok CR: HarperCollins

Credit: Chris Macke; HarperCollins

Below, we unpack whySearching for Sylvie Leeis developing into a summer sensation.

THERES SOMETHING FOR EVERYONE

At its core,Searching for Sylvie Leeis a mystery.

[But] for me, the book was about many other things.

TODAY – Pictured: (l-r) Jenna Bush Hager on Tuesday, June 4, 2019 – (Photo by: Tyler Essary/NBC/NBCU Photo Bank via Getty Images)

Tyler Essary/NBC/NBCU Photo Bank via Getty Images

It was about culture and language and compassion and understanding each other.

This points to the storys multifaceted appeal: It has layers.

If they want to read about immigration and culture and language, its also in the book.

Her characters are always judging themselves.

Ultimately, Kwok says, They are unreliable the way we all are.

But the point is, they are jarring.

Theyre jarring to me too.

Im shocked when someone says something to me.

Additional reporting by David Canfield

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