A ‘The Observer’ Crime & Thriller of the Month - June 2025

Critics are raving about RUNNER 13:

‘A thrilling race to the finish’ - The Observer

‘An unmissable novel’ - Literary Review

‘The twists will have you racing through every page’ - Woman & Home

‘For action thriller addicts’ - Stylist

Readers love it too:

‘The pacing of the book is excellent and I found myself gasping more often than not. I suspected everyone and the twists were well executed. Overall, this is 100% a 5 star read and likely to be in my top books of the year.’

‘This is the best mystery/thriller I’ve read in recent memory.’

‘This book was flat-out AMAZING. The author also ran a marathon in the Sahara Desert, and you can tell from the imagery and the internal dialogue of the characters - so many times I felt like I was right there in the desert, too.’

It’s the ultimate test of endurance: two-hundred-and-fifty miles in the brutal heat of the Sahara, with only the supplies you can carry on your back.

Adri is ready. Returning to ultra-running in the wake of a scandal, she needs to prove to herself – and her young son – that she’s a winner.

When a fellow runner is badly injured, Adri knows something isn’t right. Yet in a race this extreme, even a dead body can be explained away.

But there’s a killer stalking the hot sand. And the problem with running faster than everyone else, is that you’re miles ahead of anyone who can save you...

-----

PRAISE FOR AMY MCCULLOCH

'Amy McCulloch is the queen of the adventure thriller!'-CLAIRE DOUGLAS

'Enthralling... She has an eye for edgy and unusual settings....' -SUNDAY TIMES

'Chills, thrills and intense suspense...'-CHRIS WHITAKER