Jesper Jinx’s Best Friend (book #6)

“If you love juvenile humour, pranks, sibling rivalry, adventure and fun then pick up the Jesper Jinx series today!” David Savage Blog & Reviews


Jesper Jinx is eleven, and probably the unluckiest person in all of Puffington Hill. Everything he touches seems to end up in sweet disaster. Hence his nickname ‘Jinx’.

Every great hero needs a sidekick who’s ready to laugh at their silly antics. And Oliver has been just that for Jesper on countless pranks since the day they were born. But now Jesper’s sister Melinda has set her sights on Oliver and even worse, he doesn’t seem to mind.

Add to this horrible dilemma the fact that there is a heatwave in Puffington Hill. The air is now so hot that birds are falling from the trees and grandpas and grandmas are forced to wear bikinis. It all adds up to sweet disaster for Jesper.

How far is he willing to go to save his friendship with Oliver?

Book #6 | 150 pages | Ages: 8+
ISBN 978-1-5350-2129-6
Foreign Rights sold: Poland, China

Where to buy?


Available in paperback and on Kindle!


“A tale of friendship, jealousy, pranks, and ultimately best friends; this light hearted and funny story is full of fun and engaging characters who care deeply for one another.” (Review)

“Adding the contract of secrecy is a special touch because children love the elements of secrets and surprises. By signing this contract, children will feel part of something special.” (Review)

“Marko definitely keeps raising the bar on the story’s quality with immense twists that had both me and Jesper baffled and amazed.” (Review)

“As usual this series never fails to make me laugh.” (Review)

“I have really loved this series so far and while it has mostly been fun and games this book in particular has a really relatable subject matter, but of course is done in a fun way. This series just keeps getting better and better!” (Review)

“Overall, this is a fun and entertaining story of best friends, jealousy, love and, of course, pranks!” (Review)

“Please put down your phones and anything that may distract you and read yet another interesting chapter in the life of Jesper Jinx!” (Review)