Gallagher Girls: I'd Tell You I Love You, but then I'd Have to Kill You : Book 1: the million copy selling series set at an elite boarding school for spies

Author: Carter, Ally

Interest age: from c 12 years

Published on 30 July 2026 by Hachette Children's Group (Starboard) in the United Kingdom as part of 'the Gallagher Girls' series.

Paperback | 320 pages
197 x 128 x 23 | 224g

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The first book in the million copy selling Gallagher Girls series set at an elite boarding school for spies. Perfect for fans of XO, Kitty.

A lot of teenage girls feel invisible sometimes. I'm luckier than most because, at my school, that's considered cool. Gallagher Academy might claim to be a school for geniuses, but it's really a school for spies. Cammie Morgan is fluent in fourteen languages and capable of killing a man in seven different ways (three of which involve a piece of uncooked spaghetti). But she's about to embark on her most dangerous mission yet: falling in love.