Dahlia Finger is kind of an asshole. She's 29 and spends her days sprawled out on her couch, smoking weed and watching movies, funded by her well-off father. One night she has a seizure and learns that she has a brain tumor. Though no one will actually say it, she doesn't have long to live.
This is not one of those novels of illness where there's redemption ahead or that's supposed to make you hopeful and grateful for life (beyond not having a brain tumor). For that reason, I appreciated and responded to it. Unlike all the books on cancer Dahlia and her parents buy in bulk that say "you can beat this thing" if only you have the right attitude, in effect making you responsible (and to blame) for your own illness, The Book of Dahlia illustrates how we as a culture fail to deal with mortality. Though it's not addressed specifically in the novel, I personally wonder how much that American idea of pulling oneself up by the bootstraps is at play, which easily translates into victim-blaming when one can't.
One of the platitudes often given regarding illness and healing is that a sufferer must let go of old resentments and anger, that these can make or keep one sick. As Dahlia considers and recounts her past, it's clear she has almost nothing but resentments, from a mother who essentially abandoned her family to the older brother, once close, who took out his own pain on her in the cruelest ways. Throughout her life she's plainly asked for help and been ignored. Maybe it says something about me that I couldn't blame her for her stubbornness in forgiving and forgetting. It feels like the only way she's able to have any agency during her illness.
If this sounds grim, it's not, or not only! Dahlia's voice is often funny, enough to make me laugh out loud while reading. Her humor may be bitter, but that suits me fine. At the end of the book there was a reading group guide that asked more than one question about whether one is able to sympathize with her; I absolutely could. I often like female characters in popular culture that others find abrasive, though I often wonder how much it's about gender.
The toughest and most affecting aspect of this book was the relationship between Dahlia and her older brother. As a younger sister myself, I'm always interested in and more sensitive to depictions of that dynamic. It broke my heart to read about the turn their relationship takes, how long Dahlia holds out and has faith in him, even insulting herself to get ahead of his insulting her. I both wanted and did not want Dahlia to forgive him. It made me want to call my own brother and thank him for not being a dick!