Attack of the Slime

by Tim Healey

Published 1 August 2013

A wickedly funny series featuring Mortimer: the small kid with big ideas! In this book, Mortimer covers his whole school in slime. With slimy facts and activities at the back, perfect for young readers.

Mortimer Keene is full to bursting with madcap plans, and if it's trouble you're after, look no further! With laugh out loud illustrations, rollicking rhymes, and short chapters ideal for new readers, this first book sees Mortimer Keene and his slime machine on the attack!

When slime upon slime attacks the school, a special task force of teachers set out to find Mortimer Keene and his slime machine at the source of the crime...

Created by Chris Mould, illustrator of A Boy Called Christmas and Tim Healey. If you like Horrid Henry, you'll love Mortimer Keene.


Ghosts on the Loose

by Tim Healey

Published 2 January 2014

A wickedly funny series that will appeal to all young scientists, created by Chris Mould, illustrator of A Boy Called Christmas and Tim Healey. If you like Horrid Henry, you'll love Mortimer Keene.

Mortimer Keene is full to bursting with madcap plans, and if it's trouble you're after, look no further! With laugh out loud illustrations, rollicking rhymes, and short chapters perfect for new readers, this second book in the series sees Mortimer Keene and his phantom machine up to no good again!

When the school is overrun with ghosts and ghouls from the past, it's up to Mortimer Keene to blast them back in time and save the school.

'Hilarious' - The Guardian


Alien Abduction

by Tim Healey

Published 3 July 2014

A wickedly funny series that will appeal to all young scientists, created by Chris Mould, illustrator of A Boy Called Christmas and Tim Healey. If you like Horrid Henry, you'll love Mortimer Keene.

Mortimer Keene is full to bursting with madcap plans, and if it's trouble you're after, look no further! With laugh out loud illustrations, rollicking rhymes, and short chapters perfect for new readers, this third book in the series sees Mortimer Keene up to no good again with an alien ray gun machine!

When the school is invaded by aliens and Mr Bevan the English teacher is abducted, everyone suspects the young genius Mortimer Keene!

'The illustrations are hilarious and the whole thing is one funny story!' - The Guardian


Beast of the Bay

by Tim Healey

Published 14 January 2016

A wickedly funny series that will appeal to all young scientists, created by Chris Mould, illustrator of A Boy Called Christmas and Tim Healey. If you like Horrid Henry, you'll love Mortimer Keene.

Mortimer Keene is full to bursting with madcap plans, and if it's trouble you're after, look no further! With laugh-out-loud illustrations, rollicking rhymes, and short chapters perfect for new readers.

The Beast of the Bay has stolen six people on the school fossil-hunting trip. The coastguard are no use - the monster has destroyed their helicopter. Can Mortimer use his new aquaplane to stop the monster before it's too late?

'Hilarious!' - Guardian


Dino Danger

by Tim Healey

Published 1 January 2015

A wickedly funny series that will appeal to all young scientists, created by Chris Mould, illustrator of A Boy Called Christmas and Tim Healey. If you like Horrid Henry, you'll love Mortimer Keene.

Mortimer Keene is full to bursting with madcap plans, and if it's trouble you're after, look no further! With laugh-out-loud illustrations, rollicking rhymes, and short chapters perfect for new readers, this fourth book in the series sees Mortimer Keene involved with DINOSAURS...

Mortimer Keene has invented a Time Machine! Soon the school is surrounded by dinosaurs. But what happens when a pterosaur grabs poor Emily Bruce?

'The illustrations are hilarious... one funny story!' - Guardian


Robot Riot

by Tim Healey

Published 2 July 2015

A wickedly funny series that will appeal to all young scientists, created by Chris Mould, illustrator of A Boy Called Christmas and Tim Healey. If you like Horrid Henry, you'll love Mortimer Keene.

Mortimer Keene is full to bursting with madcap plans, and if it's trouble you're after, look no further! With laugh-out-loud illustrations, rollicking rhymes, and short chapters perfect for new readers.

Mortimer Keene has made a robot! Several, in fact. And they're all being helpful around the school. Until Robo-13 goes haywire and hacks into the Robot Control system. Soon the robots are causing complete chaos! Can Mortimer regain control over his monstrous machines?

'Hilarious!' - Guardian