Something is not right in Bayport. After a series of unfortunate (yet harmless) pranks, it looks like Frank and Joe have caught their suspect surprisingly early. Their classmate, Seth Diller, has taken his love of filmmaking a bit too far. But shortly after Frank and Joe confront Seth, there are fresh outbreaks of Seth-like pranks. Except these aren't as harmless. After a bit of investigating, the Hardy Boys uncover evidence of the Red Arrow - a group that will stop at nothing to bring chaos and crime to Bayport's peaceful existence.

Meet 13-year-old Agatha Oddly - a bold, determined heroine, and the star of a stylish new detective series. Agatha Oddlow has been a detective for as long as she can remember - she’s just been waiting for her first big case. And nothing gets bigger than saving the City of London from some strange goings-on. With a scholarship to the prestigious St Regis School, a cottage in the middle of Hyde Park, a room full of beloved sleuthing novels and a secret key that gives her access to a whole hidden side of London, Agatha is perfectly poised to solve the mystery of what’s going on. 

A third mystery for 13-year-old Agatha Oddly - a bold, determined heroine and the star of this stylish new detective series. Agatha Oddlow is on the case with yet another adventure! An assistant at the National Gallery has gone missing, but when Agatha begins investigating, she uncovers a plot bigger than she could ever have imagined. Join Agatha as she travels throughout London and into the very heart of the mystery....

It’s 1911, and the young detectives of Taylor & Rose are turning their talents to espionage. On a case for the mysterious Secret Service Bureau, the daring Miss Sophie Taylor and Miss Lilian Rose must leave London for the boulevards and grand hotels of Paris.

Daisy and Hazel invite you to discover their untold stories.... Daisy Wells and Hazel Wong are famous for solving murder mysteries. But there are many other intrigues in the pages of Hazel's casebook, from the macabre Case of the Deepdean Vampire, to the baffling Case of the Blue Violet, and their very first whodunit: the Case of Lavinia's Missing Tie.

You are cordially invited to attend the grand opening of Sinclair's department store! Enter a world of bonbons, hats, perfumes and mysteries around every corner. Wonder at the daring theft of the priceless Clockwork Sparrow! Tremble as the most dastardly criminals in London enact their wicked plans! Gasp as our bold heroines, Miss Sophie Taylor and Miss Lilian Rose, crack codes, devour iced buns and vow to bring the villains to justice....

Two-time Edgar Award-winning author Nancy Springer introduces the sleuthing powers of Sherlock Holmes' sister in the captivating mystery. Prompted by clues her missing mother cleverly left her, 14-year-old Enola races from the clutches of her captors. Enola attempts to escape from these slimy ruffians and find her mother....

After the dramatic events of their mission to St Petersburg, Sophie and Lil know the truth - there's a double-agent at work at the Secret Service Bureau. Whilst Lil pursues a dangerous line of enquiry in London, Sophie must set out on a new mission to Venice, following a twisted trail to discover long-buried secrets. But there are villains lurking amongst the city's piazzas, canals and crumbling palaces, and in the shadows an old enemy lies in wait....

Summer in London is hot, the hottest on record, and there's been a murder in The Tri: the high-rise home to resident know-it-alls, Nik and Norva. Who better to solve the case? Armed with curiosity, home-turf knowledge and unlimited time - until the end of the summer holidays anyway. The first whodunnit in a new mystery series by Sharna Jackson.

My name is Ted Spark. Three months ago, I solved the mystery of how my cousin Salim disappeared from a pod on the London Eye. This is the story of my second mystery. This summer, I went on holiday to New York, to visit Aunt Gloria and Salim. While I was there, a painting was stolen from the Guggenheim Museum, where Aunt Gloria works. Then Aunt Gloria was blamed for the theft, and I realised just how important it was to find the painting and discover who really had taken it.