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Gideon Green in Black and White

by Katie Henry

Subject
Humorous - General
Age
Teen
Format
Hardcover
Pages
384
Publisher
Katherine Tegen Books
Size
14.0 cm × 21.3 cm
ISBN
9780062955739

Truly Devious meets Turtles All the Way Down in critically acclaimed author Katie Henry’s YA contemporary comedic mystery, a hilarious send-up of the hardboiled detective genre that spotlights family, friendship, and love.

Gideon’s short-lived run as a locally famous boy detective ended when middle school started, and everyone else—including his best friend, Lily—moved on while Gideon kept holding on to his trench coat, fedora, and his treasured film noir collection. Now he’s sixteen and officially retired. That is, until Lily shows up suddenly at Gideon’s door, needing his help.

He might be mad at her for cutting him off with no explanation, but Gideon can’t turn down a case. As a cover, Gideon joins Lily on the school paper. Surprisingly, he finds himself warming up to the welcoming, close-knit staff . . . especially Tess, the cute, witty editor-in-chief.

But as the case gets bigger than Gideon or Lily could have anticipated, Gideon must balance his black-and-white quest for the truth with the full colors of real life—or risk a permanent fade to black.

* A Junior Library Guild Selection *

* A YALSA Best Fiction for Young Adults Top Ten Title *

About the author

Katie HenryAuthor

Katie Henry, author of Heretics Anonymous, Let’s Call It a Doomsday, and This Will Be Funny Someday, is a writer living and working in New York City. She received her BFA in dramatic writing from NYU’s Tisch School of the Arts and is a published playwright, specializing in theater for young audiences. Her plays have been performed by high schools and community organizations in over thirty states. You can find her online at www.katiehenrywrites.com.

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What reviewers said

"Funny and poignant. This crowd pleaser gives both a satisfying ending for aspiring sleuths and a character arc that will win readers’ hearts."
Bulletin of the Center for Children’s Books (starred review)
"A tongue-in-cheek charmer: Sit back and enjoy the show."
Kirkus Reviews
"An entertaining, emotional read. Snippets of the story rendered in noir-style prose add an amusing note to the writing's overall excellence."
Publishers Weekly
"Katie Henry has gifted us with a cleverly-crafted mystery absolutely brimming with humor and heart. Gideon Green is the rare kind of character you’ll find impossible to forget."
Kit Frick, author of I Killed Zoe Spanos and Very Bad People
“Katie Henry tells a poignant, heartfelt story of a teen detective trying to puzzle out a crime as well as the relationships in his life, and I rooted for Gideon all the way.”
Goldy Moldavsky, New York Times bestselling author of The Mary Shelley Club
“Funny, mysterious, and full of noir goodness. I loved every moment of this novel.”
Maureen Johnson, New York Times bestselling author of Truly Devious
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© 2026 Peekabooks Inc. All Rights Reserved.