Love the art ad was interested but not enraptured by the story. Two tween girls (12-ish) rekindle their friendship at the lake, where their families spend a chunk of each summer. While Alice and Windy are growing up, others around them are growing, too: Alice's parents have been fighting a lot and her mom's been depressed over something; Alice's summer crush (the guy who works at the local store and rents scary movies to her) is coping with some big scary news. 
 There's a narrative arc, of course, but is more of a vignette of the summer than a full story with a climax and resolution for our protagonist. While this is being hailed as a great YA title, the tone is more adult looking back on a teenage experience. That's not a bad thing, but nor is it what I was expecting it to be.