Even though Ally Carter is the author of the popular Gallagher Girls series, she has never told anyone she loved them and then had to kill them. She does, however, frequently cross her heart and hope to spy. You can learn more about Ally and her books by visiting her (declassified) Web site, allycarter.com.
I'd Tell You I Love You, But Then I'd Have to Kill You
$4.89 - $23.45
Cross My Heart and Hope to Spy
$4.49 - $12.02
Only the Good Spy Young
$4.89 - $320.19
Out of Sight, Out of Time
$4.69 - $280.29
United We Spy
$4.79 - $11.39
The Most Wonderful Crime of the Year
$6.09 - $83.89
Don't Judge a Girl by Her Cover
$4.59 - $288.69
The Blonde Identity
$7.19 - $15.83
Heist Society
$5.39 - $10.75
See How They Run
$5.39 - $6.39
Take the Key and Lock Her Up
$7.19 - $9.59
Not If I Save You First
$4.69 - $11.73
All Fall Down
$4.99 - $12.34
Uncommon Criminals
$4.69 - $16.10
Perfect Scoundrels
$4.89 - $15.38
Winterborne Home for Vengeance and Valor
$5.39 - $20.69
My True Love Gave to Me
$4.39 - $14.57
Winterborne Home for Mayhem and Mystery
$5.09 - $29.43
The Blonde Who Came in from the Cold
$11.49 - $32.42
Hope Nation: YA Authors Share Personal Moments of Inspiration
$4.49 - $11.40
Dear Ally, How Do You Write a Book?
$6.29 - $9.79
Cheating at Solitaire
$6.99 - $7.39
Learning to Play Gin
$4.79 - $4.99
Gallagher Girls: The Plaid Collection
Out of Stock
The Complete Gallagher Girls 6 Books Collection Set by Ally Carter
Out of Stock
The Blonde Who Came in from the Cold
Releases 8/18/2026
It’s Beginning to Look a Lot Like Murder: A Novel (A Kiss Merry Kill Novel)
Releases 10/13/2026
Uncommon Criminals (Heist Society) by Carter, Ally
Out of Stock
United We Spy (Gallagher Girls) by Carter, Ally (September 23, 2014) Paperback
Out of Stock
The Spies that Bind: A Gallagher Girls Prequel
Out of Stock
