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Penguin Random House Children's UK · MMXXVI
Lottie Brooks vs The Ultra Mean Girls
Katie Kirby
Illustrated · ages 9–12

Lottie Brooks vs The Ultra Mean Girls

Written and illustrated by Katie Kirby

Book 7 of 8 in Lottie BrooksView the full series

Bestseller list
Top giftable

Amber has ditched the gang for the Ultra Mean Girls, and Lottie has to save her friendship group before it falls apart forever. Book seven of the illustrated diary tackles friendship break-ups, mean-girl cliques and dreaded school injections.

  • Best for9–12
  • FormatIllustrated

The vibe

What it’s like.

Style

  • Comedic
  • Conversational
  • Epistolary

Tone

  • Funny
  • Irreverent
  • Warm
  • Heartwarming

Themes

On the pagefriendship, mean girls, cliques, friendship break up, diary, family

Experience meters

Energy4/ 5
Humour5/ 5
Scariness1/ 5
Peril1/ 5
Wonder1/ 5
Cosiness3/ 5
Emotional intensity2/ 5
Conceptual intensity2/ 5

What’s it about?

The story.

Just when Lottie Brooks thinks life might finally be settling down, everything goes wrong again. Amber has started hanging out with the Ultra Mean Girl Gang and is completely blanking the rest of the Queens of Eight Green. On top of that, Mum has gone back to work and expects Lottie to help around the house more, baby Bella keeps biting everyone, and Pot Noodle the cockapoo will not stop sniffing every dog's bottom. Determined not to let her friendship group be destroyed forever, Lottie cooks up a foolproof plan to win Amber back, all while surviving dreaded school injections and yet another parade of extremely embarrassing moments. Told in Katie Kirby's trademark diary of doodles, lists, text threads and thoughts of the day, the seventh Lottie Brooks book is a warm, laugh-out-loud story about mean-girl cliques, standing by your real friends, and finding the courage to fight for the people who matter.

Fit check

Right for your child?

Where it lands by age

A 9-12 independent read tackling mean-girl cliques and a fracturing friendship group. The social conflict has real bite but resolves warmly, and the illustrated diary format keeps it quick and reluctant-reader friendly.

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  • 13
  • Best fit · 9–12
  • Read aloud · 9–12
  • Independent · 9–12

Prose load

Light

Visual support

High

Reluctant-reader friendly

Very

Read-aloud quality

Workable

Works well for

  • Reading together
  • Gift-buying
  • Reluctant readers
Low sensitivityNo content warnings

Nothing in the book is likely to concern most parents. Safe to recommend without preview.

Bedtime suitability

3 / 5 · Workable

Sensitive-child

4 / 5 · Good fit

Graphic intensity

1 / 5 · None

Best for

  • Funny diary
  • Friendship dramas
  • Mean girls
  • Reluctant readers
  • Tween girls

Avoid if

  • Wants action adventure
  • Wants fantasy

Particularly good for children who are…

  • Making friends
  • Being bullied
  • Reluctant reader
  • Low self esteem

Why it lands

Why they love it.

Why kids love it

When Amber defects to the Ultra Mean Girls, Lottie's scheming to win her back is exactly the friendship drama tweens live for, complete with mortifying school injections and a bottom-sniffing dog. It's told in laugh-out-loud texts, lists and doodles.

  • Friendship and belonging
  • Being understood finally
  • The underdog winning
  • Proving yourself

Why parents love it

It takes the sting of mean-girl cliques and friend groups splintering seriously, then reassures with a story about loyalty and standing by your real friends. The diary format keeps reluctant readers turning pages fast.

  • Shared humour
  • Quick to read

In the series

Lottie Brooks.

8 books · open the series →

About the author & illustrator

Katie Kirby.

KK

Katie Kirby

Writer & illustrator

Bio coming soon.

More from Katie Kirby

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Last reviewed · July 2026Suggest a correctionHow we recommend

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