Penguin Random House Children's UK

Daisy Wells and Hazel Wong have returned to Deepdean for a new school term, but nothing is the same. There's a new Head Girl, Elizabeth Hurst, and a team of Prefects - and these bullying Big Girls are certainly not good eggs. Then, after the fireworks display on Bonfire Night, Elizabeth is found - murdered.

When Daisy Wells and Hazel Wong set up their very own secret detective agency at Deepdean School for Girls, they struggle to find any truly exciting mysteries to investigate. (Unless you count the case of Lavinia's missing tie. Which they don't.) Then Hazel discovers the Science Mistress, Miss Bell, lying dead in the Gym.

Schoolgirl detectives Daisy Wells and Hazel Wong are at Daisy's home, Fallingford, for the holidays. Daisy's glamorous mother is throwing a tea party for Daisy's birthday, and the whole family is invited. But it soon becomes clear that this party isn't really about Daisy at all. Naturally, Daisy is furious...

Daisy Wells and Hazel Wong are taking a holiday on the world-famous Orient Express - and it's clear that each of their fellow first-class passengers has something to hide. Even more intriguing: there is rumour of a spy in their midst. Then, during dinner, there is a scream from inside one of the cabins.

When young David Balfour's father dies and leaves him in poverty, he tracks down his Uncle Ebenezer to seek his inheritance. But his uncle is a mean, nasty man with a dark family secret. David finds himself in terrible danger when he is kidnapped and taken prisoner on board a ship bound for slavery - he must escape.

Following the demise of bloodthirsty buccaneer Captain Flint, young Jim Hawkins finds himself with the key to a fortune. For he has discovered a map that will lead him to the fabled Treasure Island. But a host of villains, wild beasts and deadly savages stand between him and the stash of gold.