Lily Tripp: Diary of an Accidental Time Traveller

like Lottie Brooks meets Back to the Future! Waterstones Children's Book of the Month JUNE 2026

Meet accidental time traveller Lily Tripp as she bounces throughout history navigating friendship dramas, first love and family. It's LOTTIE BROOKS meets BACK TO THE FUTURE!

'Laugh-out-loud, brilliantly funny' HANNAH GOLD
'All the heart and humour of Lottie Brooks and Georgia Nicolson' ANNA JAMES

Meet accidental time traveller Lily Tripp as she bounces throughout history navigating friendship dramas, first love and family. It's LOTTIE BROOKS meets BACK TO THE FUTURE!​

WATERSTONES CHILDREN'S BOOK OF THE MONTH June 2026

'Laugh-out-loud, brilliantly funny. I can't wait to see where Lily goes next'
HANNAH GOLD, author of The Last Bear

'All the heart and humour of Lottie Brooks and Georgia Nicolson' ANNA JAMES, author of Pages & Co.

Why is my life so last century?
My name is Lily, I'm 13, and I have a big secret: every New Year's Eve when the clock strikes midnight, I time travel to a totally different era. Talk about inconvenient.

Luckily my cat, my best friend, and my not-so-secret crush always turn up, too. But why is my archnemesis, Georgia, so good at ye olde insults? How does anyone survive in ancient times without chicken nuggets? And why on earth can't I stay in one century?!

'Time travel has never felt so funny'
ALEXANDER ARMSTRONG, author of Evenfall: The Golden Linnet

'Relatable, funny and filled with fascinating facts . time travelling with Lily Tripp was pure joy!'
JEN CARNEY, author of The Accidental Diary of B.U.G.

'Hilarious and relatable . I wish I could travel back in time to read it for the first time all over again!' NIYLA FAROOK, award-winning author of Murder for Two

'This gorgeous time-travelling debut is one for every children's shelf. Highly entertaining.' Telegraph, Children's Book of the Week

'This book is seriously funny and the historical details are fascinating. Lottie Brooks and older Milly McCarthy readers will love it' Irish Independent

UK Delivery:

• Free delivery on all orders of £10 or more.
• £1.49 delivery fee on orders below £10.
• UK orders are shipped via Royal Mail 2nd Class.

International Delivery:

• Flat rate delivery charges vary by country.

Dispatch and Delivery Times:

• All orders are shipped from our warehouse in Northampton, UK within 48 hours of receipt during working hours.
• UK mainland orders typically arrive within 3-5 working days via Royal Mail 2nd Class.
• International estimated delivery times:
• Europe & Channel Islands: 7 to 10 working days
• USA: 7 to 15 working days
• Rest of the World: 9 to 21 working days

View our full delivery infomation here.