How many Gallagher Girls books are there?

There are 5 books in the Gallagher Girls series by Ally Carter, for ages 11-18.

What order should I read Gallagher Girls?

The Gallagher Girls series should be read in this order: 1. I'd Tell You I Love You, But Then I'd Have to Kill You, 2. Cross My Heart and Hope to Spy, 3. Only the Good Spy Young, 4. Out of Sight, Out of Time, 5. United We Spy.

Gallagher Girls Books in Order

Gallagher Girls is a 5-book series for ages 11–18 by Ally Carter.

Where to Start

Start at the beginning: I'd Tell You I Love You, But Then I'd Have to Kill You

This is a sequential series — each book builds on the last. Start with book 1.

Reading Order

I'd Tell You I Love You, But Then I'd Have to Kill You2006

Cross My Heart and Hope to Spy2007

Only the Good Spy Young2010

Out of Sight, Out of Time2012

What This Series Covers

Self-Confidence & Identity Friendship & Loyalty Mystery School Life Adventure Growing Up

What to Read Next

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Spy High #1

The Frankenstein Factory

A. J. Butcher

Six teenagers at a high-tech spy school must master intense team exercises before they are dropped into a dangerous real

Ages 12–16

In with the Out Crowd

Norma Howe

Ages 13–17

Wildseed Witch #3

Fortunes and Frenemies

Marti Dumas

For the child navigating the tricky waters of middle school social circles and the pressure to belong while staying true

Ages 8–12