The adventures of the time-travelling Butterfly Club continue . . . Film is set to become the new craze. Butterfly Club member and filmmaker Georges Méliès pleads to be allowed to go forward in time to harvest a movie camera from the future to make his ambitious film, A Trip to the Moon. The Butterfly Club call up Professor Lorenz's hologram from 1969. The professor reports that all of America is abuzz too, with the most ambitious scientific project in history – an actual trip to the moon. But the mission has stalled in the most terrible way – an accident on the launchpad resulted in the astronauts being trapped in a fatal fire. For the first time ever it is the professor who asks the time thieves for help – he invites them to come to 1969 and stop the dreadful accident, and make sure the trip to the moon can go ahead.

Would you risk the future to change the past? Greenwich, London, 1894. Luna, Konstantin and Aidan are time-travelling thieves, stealing artefacts from the future to bring progress forward. And they are about to venture on their most treacherous mission. For The Butterfly Club have their eyes on a shiny new prize. In Egypt's Valley of the Kings a man named Howard Carter will stumble upon an unimaginable treasure - Tutankhamun's mummy: the greatest archaeological discovery of all time. The three children are given an impossible task: travel to 1922 and uncover the mummy first. But when the time-thieves disturb Tutankhamun's long sleep they wake something else too - a deadly and ancient curse. And now they must face the terrifying consequences of their actions...

'A hugely entertaining mystery' - Fiona Noble, The Bookseller Children's Previews 'One to Watch' Greenwich, London, 15th February 1894. Luna thinks that an evening at her aunt's butterfly club sounds deathly boring. But it turns out that the meeting, held in the Butterfly Room at the Greenwich Observatory, is not at all as Luna expects. The Butterfly Club is a society with an unusual secret . . . they use time travel to plunder the future for wonders. Together with her friends, Konstantin and Aidan, and a clockwork cuckoo, Luna boards the Time Train. The gang travel to 1912 and find themselves aboard a great ship travelling from Southampton to New York. They locate a man called Guglielmo Marconi and his new invention: the wireless radio. But as the ship heads into icy waters, they discover its name: The RMS TITANIC Can Luna and the boys save Marconi and his invention from the doomed ship? Can they get the radio back home to the Butterfly Club? And how will their actions change the rest of time?

A selection of the most accessible survey papers from the Millennial Conference on Number Theory. Presented and compiled by a group of international experts, these papers provide a current view of the state of the art and an outlook into the future of number theory research. This book serves as an inspiration to graduate students and as a reference for research mathematicians.

A selection of the most accessible survey papers from the Millennial Conference on Number Theory. Presented and compiled by a group of international experts, these papers provide a current view of the state of the art and an outlook into the future of number theory research. This book serves as an inspiration to graduate students and as a reference for research mathematicians.

The adventures of the time-travelling Butterfly Club continue . . . When the Butterfly Club asks the time thieves to go to Paris and steal a little-known painting known as the Mona Lisa, Aidan can only think of one man who can make things disappear - Harry Houdini. The three children and Houdini travel to 1911 Paris where they face their most difficult mission yet. To add to the challenge they soon discover they are not the only ones planning to steal the Mona Lisa. A group of artists also seem intent on stealing the portrait, as it contains hidden clues to a much greater treasure, clues that were placed there in Renaissance times by the Mona Lisa's creator Leonardo Da Vinci himself.

'A darkly compelling examination of the allure of privilege' - The Guardian. The gripping final instalment in the twisting series that will have fans of One of Us is Lying and Pretty Little Liars hooked. Determined to crush the Order of the Stag once and for all, and in a desperate last throw of the dice, Greer walks willingly into the lion's den by accepting a sinister invitation to Castle MacLeod, a Scottish stately home in the Isle of Skye. Greer will be aided and kept safe by Shafeen and Nel, and the enigmatic Abbot Ridley. Plus, of course, Henry de Warlencourt who will accompany her and insists he has changed his colours. But as their darkly fraught romance evolves, can Greer trust him as she places her life in his hands? A deadly and shocking finale that will have readers on the edge of their seats.

A contemporary take on the savage classic LORD OF THE FLIES: a group of mismatched, modern-day teenagers must fight to survive on a deserted island.

Linc is a fish out of water. Newly arrived from America, he is finding it hard to settle into the venerable and prestigious Osney House School. Who knew there could be so many strange traditions to understand? And what kind of school ranks its students by how fast they can run round the school quad - however ancient that quad may be? When Linc runs the slowest time for years, he immediately becomes the butt of every school joke. And some students are determined to make his life more miserable than others . . .

When a school summer trip is offered, Linc can think of nothing worse than spending voluntary time with his worst tormentors. But when his parents say he can only leave Osney School - forever - if he goes on the trip, Linc decides to endure it for the ultimate prize. But this particular trip will require a very special sort of endurance. The saying goes 'No man is an island' - but what if on that island is a group of teenagers, none of whom particularly like each other? When oppressive heat, hunger and thirst start to bite, everyone's true colours will be revealed. Let the battle commence . . .

Nine students. Three blood sports. One deadly weekend. It is the autumn term and Greer MacDonald is struggling to settle into the sixth form at the exclusive St Aidan the Great boarding school, known to its privileged pupils as S.T.A.G.S. To her surprise Greer receives a mysterious invitation with three words embossed upon on it: huntin' shootin' fishin' - an invitation to spend the half-term weekend at the country manor of Henry de Warlencourt, the most popular and wealthy boy at S.T.A.G.S. Greer joins the other chosen students at the ancient and sprawling Longcross Hall, and soon realises that they are at the mercy of their capricious host. Over the next three days, as the three blood sports - hunting, shooting and fishing - become increasingly dark and twisted, Greer comes to the horrifying realisation that those being hunted are not wild game, but the very misfits Henry has brought with him from school... A twisty YA thriller for fans of One of Us Is Lying, Pretty Little Liars, We Were Liars, and The Hunger Games.

The alluring yet corrupt STAGS society, where the rich and privileged play fast and loose with the lives of others, is revealed to be terrifyingly global ... Shafeen's father, Prince Aadhish, has had a heart attack and is close to death. Desperately worried, Shafeen and Greer race from STAGS to Rajasthan. But Prince Aadhish is in a coma and unresponsive and they begin to realise that the Prince received a terrible shock, triggered by a decades-old guilty secret. But as Shafeen and Greer attempt to unlock the secret, they come to believe the answer lies with the de Warlencourt ancestor Colonel Montgomery, founder of the T.I.G.E.R. shooting club, which horrifyingly pursued low-caste Indians instead of tigers. It appears that 'Monty' brought the Order of the Stag to India, and the hunts may still be going on... A thrilling next instalment in the STAGS series.

After the dramatic events of the last few weeks, Greer Macdonald is trying to concentrate on her A levels. Stuck for a play to direct for her drama exam, she gets help from an unexpected quarter . . .

A priceless lost play, buried by time, is pushed under her door. It is Ben Jonson's The Isle of Dogs, a play considered so dangerous in Elizabethan times that every copy was burned . . . except one. As the students begin to rehearse, events become increasingly dark and strange, and they lead Greer back to where she never thought she would return - Longcross Hall.

There she discovers that not only is the Order of the Stag alive and well, but that a ghost from the past might be too . . .

Greer has just recovered from her terrifying experience during the STAGS play. Was she really put on trial by the sinister Dark Order of the Grand Stag? Or was it purely her overheated imagination? The imprint of an 'M' for murderer that has appeared on her thumb, though, is puzzling but incomplete evidence . . .

Meanwhile Ty is staying on at Longcross Manor and Greer, Nel and Shafeen are increasingly worried for her safety. When Ty sends a cryptic message directing them to Cumberland Place, the de Warlencourts' palatial home in London, they decide to risk a visit. There they meet Henry's grieving parents, Rollo and Caro. Rollo is arrogant, entitled and not overly grieving. Caro, however, while superficially charming, is clearly pushed to the brink of madness by Henry's death, insisting that Henry is still alive. Which is clearly impossible . . . but Greer has her own troubling doubts about Henry's death which make it hard to dismiss Caro completely . . .

Can Greer, Shafeen and Nel work out what Rollo de Warlencourt is planning for his deadly Boxing Day Hunt at Longcross in time to save Ty - who has now gone silent? Or will history horribly repeat itself?

A thrilling, richly complex instalment in the STAGS series