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Penguin Random House Children's UK · MMXXII
The Catastrophic Friendship Fails of Lottie Brooks
Katie Kirby
Illustrated · ages 9–12

The Catastrophic Friendship Fails of Lottie Brooks

Written and illustrated by Katie Kirby

Book 2 of 8 in Lottie BrooksView the full series

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Lottie's two best friends won't get along, the school musical looms and there's a new baby at home. Book two of the illustrated diary is a warm, funny anatomy of the way friendships wobble at eleven.

  • Best for9–12
  • FormatIllustrated

The vibe

What it’s like.

Style

  • Comedic
  • Conversational
  • Epistolary

Tone

  • Funny
  • Irreverent
  • Warm
  • Heartwarming

Themes

On the pagefriendship, friendship jealousy, school play, new baby, diary, first crush

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.

Lottie Brooks is eleven and three-quarters and finally settling into secondary school, until her original best friend Molly moves back home. Delighted, Lottie tries to merge Molly with her new best friend Jess into one glorious 'Terrific Threesome', only to discover that the two of them can't stand each other. As Molly drifts towards the popular Amber, Lottie is left feeling wobbly, jealous and confused about who her real friends even are. Meanwhile there's a new baby sister, Bella, an annoying little brother, Toby, and the small matter of auditioning for the school production of The Little Mermaid, where a starring role might just impress her mega-crush Daniel, even if it means singing as a crab. Told in Katie Kirby's signature diary of doodles, lists and over-shares, this second Lottie Brooks book is a spot-on, laugh-out-loud portrait of friendship jealousy and the impossible job of keeping everyone you love in the same room.

Fit check

Right for your child?

Where it lands by age

A 9-12 independent read that follows straight on from book one but stands alone. The friendship-jealousy storyline speaks to children navigating shifting best-friend groups, and the diary format keeps it fast and accessible for reluctant readers.

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  • 11
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  • 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
  • Reluctant readers
  • Tween girls
  • School stories

Avoid if

  • Wants action adventure
  • Wants fantasy

Particularly good for children who are…

  • Making friends
  • New sibling
  • Reluctant reader
  • Low self esteem

Why it lands

Why they love it.

Why kids love it

Anyone who's ever tried to make two friends like each other will recognise Lottie's Terrific Threesome disaster. The audition for The Little Mermaid, the crush on Daniel and the new baby chaos are told with lists, doodles and laugh-out-loud honesty.

  • Friendship and belonging
  • Being understood finally
  • Proving yourself

Why parents love it

It takes the tangled politics of tween friendships seriously while keeping every page funny. Reluctant readers fly through it, and the way Lottie learns friendships can bend without breaking gives parents plenty to talk about.

  • 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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