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Cover of Worst Week Ever! Thursday
Illustrated · ages 8–11

Worst Week Ever! Thursday

Written by Eva Amores · Illustrated by Matt Cosgrove

Book 4 in Worst Week Ever!View the full series

Top giftable

Thursday drags Justin Chase into a case of mistaken identity when he befriends a globe-famous teen pop star who happens to share his name - and a mix-up spirals into a kidnapping and a frantic chase. More fast, cartoon-packed comedy from the day-by-day series.

  • Best for8–11
  • FormatIllustrated
  • Length192 pp
  • Read aloud~1 hr15 min
Where to buyPaperback
WaterstonesIn stock
£7.99
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The vibe

What it’s like.

Style

  • Comedic
  • Conversational

Tone

  • Funny
  • Silly
  • Irreverent
  • Absurdist
  • Exciting

Themes

On the pagemistaken identity, pop star, fame, kidnapping, chase

Experience meters

Energy5/ 5
Humour5/ 5
Scariness2/ 5
Peril3/ 5
Wonder2/ 5
Cosiness1/ 5
Emotional intensity2/ 5
Conceptual intensity1/ 5

What’s it about?

The story.

It's Thursday, and Justin Chase's unwanted celebrity is now beaming his most embarrassing moments around the globe after an appearance on breakfast TV. Then things get properly out of hand: Justin discovers a new best friend in an international pop sensation and teen heartthrob who happens to share his exact name - Justin Chase. But when the two are mistaken for one another, a disastrous kidnapping follows, and our hapless hero finds himself racing against the clock and a ferocious dog to escape. It's the most far-flung, high-stakes day of the week so far, told in the series' signature riot of text, cartoons and photographs. Fast, daft and stuffed with slapstick, the fourth book in the globally bestselling day-by-day series is perfect for fans of Tom Gates, Diary of a Wimpy Kid and the Treehouse books. The relentless visual comedy and short bursts of text make it a reliable page-turner for reluctant readers who want a laugh and a chase in equal measure.

Fit check

Right for your child?

Where it lands by age

For 8-11s reading independently, with the visual, joke-packed format keeping it accessible for reluctant readers and confident younger ones. The mistaken-identity caper adds a chase element on top of the usual school-life comedy.

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  • Best fit · 8–11
  • Read aloud · 7–10
  • Independent · 8–11

Prose load

Light

Visual support

Very 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

2 / 5 · Better outside bedtime

Sensitive-child

3 / 5 · Mostly fine

Graphic intensity

1 / 5 · None

Best for

  • Reluctant readers
  • Funny disaster comedy
  • Toilet humour
  • Wimpy kid fans

Avoid if

  • Wants gentle bedtime
  • Dislikes gross out humour

Particularly good for children who are…

  • Reluctant reader

Why it lands

Why they love it.

Why kids love it

Justin befriends a world-famous pop star with his exact name, then a mix-up lands him in a kidnapping and a race against the clock - and a ferocious dog. The escalating chase, the celebrity gag and the wall-to-wall cartoons keep the pages flying.

  • Surviving danger
  • The underdog winning
  • Trickery and cleverness

Why parents love it

The mistaken-identity plot gives this instalment a proper caper energy while keeping the fast, image-heavy format reluctant readers love. Harmless peril, a fun poke at celebrity culture and jokes on every page.

  • Shared humour
  • Quick to read

In the series

Worst Week Ever!.

7 books · open the series →

About the creators

About the creators.

EA

Eva Amores

Writer · Australia

Eva Amores is a Filipino-Australian author, designer and photographer, based in Sydney, who co-creates the globally translated Worst Week Ever! series with her husband, the author-illustrator Matt Cosgrove. Born in the Philippines and educated in Australia, she worked in design and photography — including for the Sydney Opera House and the ABC — before turning to children's fiction. Worst Week Ever! chronicles hapless Justin Chase's spectacularly disastrous week one book at a time, told in a manic mash-up of text, cartoons and photographs. Fast, daft and stuffed with slapstick, gross-out gags and running jokes, the seven-part series is built to turn reluctant readers into page-turners, sitting comfortably alongside Diary of a Wimpy Kid, Tom Gates and the Treehouse books. Reliable, high-octane comedy for 8–11s.

More from Eva Amores
MC

Matt Cosgrove

Writer & illustrator · Australia

Matt Cosgrove is an Australian author-illustrator based in Sydney, best known for the bestselling Macca the Alpaca picture books and, with his wife Eva Amores, the globally translated Worst Week Ever! series. A former magazine creative director with a first-class design degree, Cosgrove brings a slick visual comic energy to Worst Week Ever!, which chronicles Justin Chase's spectacularly disastrous week one day at a time, in a manic mash-up of text, cartoons and photographs. Fast, daft and stuffed with slapstick, gross-out gags and running jokes, the books are built to turn reluctant readers into page-turners, and sit comfortably alongside Diary of a Wimpy Kid, Tom Gates and the Treehouse series. Reliable, high-octane comedy for 8–11s who want laughs on every page.

More from Matt Cosgrove

If you liked this

Three ways out of this book.

If you liked this, try…

Lateral matches. Same shelf, different texture.

Come into this from…

Easier or preparing reads — perfect lead-ins.

Where to go next…

Escalation reads — a step up in scale, silliness, or stakes.

Last reviewed · July 2026Suggest a correctionHow we recommend

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