There have been many bad days in Edinburgh police's secret subdivision 'The Commission for the Elucidation of Unsolved Cases Presumably Related to the Odd and Ghostly'. But today is surely the worst. Because the exiled English Inspector Ian Frey, and his Scottish boss 'Nine-Nails' McGray are summoned to a meeting in the middle of the night with the Prime Minister himself. And he tells them that Queen Victoria - the most powerful person in the world - wants them both dead.

Life’s always an adventure for the Athena Club...especially when one of their own has been kidnapped! After their thrilling European escapades rescuing Lucina van Helsing, Mary Jekyll and her friends return home to discover that their friend and kitchen maid Alice has vanished - and so has their friend and employer Sherlock Holmes! As they race to find Alice and bring her home safely, they discover that Alice and Sherlock’s kidnapping are only one small part of a plot that threatens Queen Victoria, and the very future of the British Empire.

Mrs Laetitia Rodd is the impoverished widow of an Archdeacon: she is also a private detective of the utmost discretion. In winter 1850, she is asked by Sir James Calderstone to investigate the background of an 'unsuitable' woman his son intends to marry. In the guise of governess, she travels to the family seat, Wishtide, where she discovers that the Calderstones have more to hide than most. As their secrets unfold, the case takes an unpleasant turn when a man is found dead outside a tavern.

Edinburgh, 1847. Will Raven is a medical student, apprenticing for the brilliant and renowned Dr Simpson. Sarah Fisher is Simpson’s housemaid and has all of Raven’s intelligence, but none of his privileges. As bodies begin to appear across the Old Town, Raven and Sarah find themselves propelled headlong into the darkest shadows of Edinburgh’s underworld. And if either of them are to make it out alive, they will have to work together to find out who’s responsible for the gruesome deaths. 

London, 1882. Alec Lonsdale, a young reporter on the Pall Mall Gazette, is working on a story about a fatal house fire. But the postmortem on the victim produces shocking results: Patrick Donovan's death was no accident. But why would someone murder a humble shop assistant and steal part of his brain? When a second body is discovered, its throat cut, and then a third, Lonsdale and his spirited female colleague, Hulda Friederichs, begin to uncover evidence of a conspiracy that reaches to the highest echelons of Victorian society.

The foggy streets of London's Whitechapel district have become a nocturnal hunting ground for Jack the Ripper, and no woman is safe. Flower girl Constance Piper is not immune to dread, but she is more preoccupied with her own strange experiences of late. Clairvoyants seem to be everywhere these days. In desperation, even Scotland Yard has turned to them to help apprehend the Ripper.

Lydia has always known she has no power, especially next to her infamous and more-than-slightly dodgy family. Which is why she carved her own life as a private investigator far away from London. When a professional snafu forces her home, the head of the family calls in a favour, and Lydia finds herself investigating the disappearance of her cousin, Maddie. 

The year is 1895. The police don't have the resources to deal with everything that goes on in the capital. The rich turn to a celebrated private detective when they need help: Sherlock Holmes. But in densely populated South London, where crimes are sleazier and Holmes rarely visits, people turn to Arrowood, a private investigator who despises Holmes, his wealthy clientele and his showy forensic approach to crime. Arrowood understands people, not clues.

London, 1851. With the opening of the Great Exhibition at hand, interest in mounting in the engineering triumphs of the railways, but not everyone feels like celebrating. In an audacious attack, the London to Birmingham mail train is robbed and derailed, causing many casualties. Planned with military precision, this crime proves a challenge to Detective Inspector Robert Colbeck who fights to untangle a web of murder, blackmail and destruction.

Spring, 1918. The Great War is at a crucial stage, the Germans are making one last push into France, and the Allies are struggling to hold them back. Battle lines are shifting, and men, and their machines, are being sent up and down the front to shore up defenses. Major Heathcliff Lennox, and his batman Greggs, are told to report to their new HQ. They set off on a sunlit day to fly the distance, but the enemy is never far away, and disaster strikes. They're sent crashing to the ground behind enemy lines, where life, death, and love await.

The Carolinas, 1699: The citizens of Fount Royal believe a witch has cursed their town with inexplicable tragedies -- and they demand that beautiful widow Rachel Howarth be tried and executed for witchcraft. Presiding over the trial is traveling magistrate Issac Woodward, aided by his astute young clerk, Matthew Corbett. Believing in Rachel's innocence, Matthew will soon confront the true evil at work in Fount Royal....

Sam Toop lives in a funeral parlour, blessed (or cursed) with an unusual gift. While his father buries the dead, Sam is haunted by their constant demands for attention. Trouble is afoot on the ‘other side’ – there is a horrible disease that is mysteriously imprisoning ghosts in empty houses in the world of the living. And Sam is caught in the middle – will he be able to bring himself to help? A darkly comic Dickensian ghost story from Blue Peter Award winner Gareth P. Jones.

England, 1819. Two enigmatic Americans arrive in London and soon after, a bank collapses. A man is found dead on a building site; another goes missing in the teeming stews of Seven Dials. A deathbed vigil ends in an act of theft and a beautiful heiress flirts with her inferiors. A strange destiny links each of these events to the American boy Edgar Allen Poe, brought to England by his foster father and sent to the leafy village of Stoke Newington to be educated.

Ruth has returned to Edinburgh after many years of exile, left rootless by the end of her marriage and career and now the death of her father, from whom she had long been estranged. She is faced with the daunting task of clearing his house, believing he had removed all traces of her mother. Yet hidden away in a barely used top-floor room, she finds he had secretly kept a cupboard full of her possessions. Sifting through the ancient papers, Ruth discovers the diary and letters written by her ancestor from the 18th century, Thomas Erskine.

1786, Jerusalem College, Cambridge. The ghost of Sylvia Whichcote is rumoured to be haunting Jerusalem, since disturbed fellow-commoner, Frank Oldershaw, claims to have seen the dead woman prowling the grounds. Desperate to salvage her son’s reputation, Lady Anne Oldershaw employs John Holdsworth, author of The Anatomy of Ghosts a stinging account of why ghosts are mere delusion to investigate.