★ “Riotous.” — School Library Journal, Starred Review

★ “Join Casey as she endeavors to crack the case in this inviting series starter.”—Publishers Weekly, Starred Review

Get your copy here!

Coming Up!

Art Opening and Book Signing

Friday, February 21, 5 - 7 PM
Gleaners Cafe
917 S. 9th Street, Philadelphia, PA

An exhibition of Kay Healy’s original ink and watercolor paintings based on her graphic novel series, Casey’s Cases: The Mysterious New Girl, through March 24.

“A smashing success.”

- Abby Hanlon, Creator of the Dory Fantasmagory Series
“Casey is my new favorite not-so-wiseguy detective."

- Jon Scieszka, author of The Stinky Cheese Man and National Ambassador for Young People’s Literature
“Casey is a master of tiny victories, and a massive victory for Kay Healy.”

- Shawn Harris, Caldecott Honoree for Have You Ever Seen a Flower

Future Events

2025 Lititz Kid-Lit Festival

Saturday, March 8, 9 AM- 5 PM
Linden Hall
212 E Main St, Lititz, PA

Great Graphic Novels for Early Readers Panel

Sunday, March 16, 2 - 3 PM
Books of Wonder
42 W 17th St, New York, NY

Book Signing

Sunday, March 23, 1-2 PM
Children’s Book World
17 Haverford Station Rd, Haverford, PA

Free Library Talk

Sunday, March 27, 12:30 PM
Free Library of Philadelphia
1901 Vine Street, Philadelphia, PA

Signing and Comic Project

Saturday, April 5, 12 - 1 PM
Head House Books
619 S. 2nd Street, Philadelphia, PA

Book signing event and comic making project. All ages welcome!

South Jersey Book Festival

Saturday, April 12, 12 - 4 PM
Haddonfield Middle School
5 Lincoln Avenue, Haddonfield, NJ

Book Signing and Exhibition

Sunday, May 18, 12 - 3 PM
Capricorn Books
605 West Avenue, Jenkintown, PA

An exhibition closing of Kay Healy’s original paintings based on her graphic novel series and a book signing.

Casey’s Cases: The Mysterious New Girl is the first of two graphic novels for kids by Kay Healy and published by Neal Porter Books/Holiday House.

Eleven-year-old Casey is a budding detective. No mystery is too big or too small, but most of her cases are pretty small...

Join Casey as she wards off the taunts of mean girl Dina, rummages through trash with the new girl Jan, tries to win the favor of her crush AJ, helps a lost cat she finds on her doorstep, and stumbles through many more everyday adventures in the life of a comical fifth grader.

Case closed: Casey's Cases is a laugh-out-loud debut from author/illustrator Kay Healy.

A Junior Library Guild Gold Standard Selection

Order your copy of Casey’s Cases the Mysterious New Girl from the independently-owned store Tildie’s Toy Box, and it will be dedicated and signed by the author/illustrator Kay Healy.

Printable projects related to Casey’s Cases are available at the Casey’s Cases Educational Resources page.

Please visit the Author Visits page for information about hosting Kay Healy at your school, library, bookstore, or other venue.