Follows three young operatives of a Psychic Detection Agency as they battle an epidemic of ghosts in London.

"With the help of some unexpected, and rather ghostly, allies, Lockwood & Co. must battle their greatest enemy yet, as they move ever closer to the moment when the earth-shattering secret of 'the problem' will finally be revealed"--

In 1593, thirteen-year-old Tom travels through the English countryside to London, where he falls in with a troupe of actors and finds himself in great danger from several sources.

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, break codes, devour iced buns and vow to bring the villains to justice ... A splendid...

When sixteen-year-old AJ Flynn finds a mysterious key at his new job at a London law firm, he and his scrappy friends begin a series of journeys to 1830 where they discover a crime only they can solve. AJ Flynn sees a future that’s far from rosy, so when he's offered a junior clerk position at a London law firm he believes his life is about to change. When he finds an old key labeled with his birth date he discovers the door opens into 1830. AJ...

Seventeen-year-old Nathaniel has risen to a position of importance in the British government with the help of Bartimaeus, a djinni he summoned to help him root out rebels, but with Bartimaeus' essence weakening due to having spent too long in the real world, he and Nathaniel are forced to team up with rival Kitty Jones to save the country from demons.

Young Sherlock Holmes, committed to solving crimes after his mother's death, is visiting his father at work when an aerialist, practicing a high-trapeze performance at the legendary Crystal Palace, falls to the ground, landing at Holmes' feet, and uttering two cryptic last words that send the boy on a dangerous search for answers.

When Elspeth Noblin dies, she leaves everything to the 20-year-old American twin daughters of her own long-estranged twin, Edie. Valentina and Julia, as enmeshed as Elspeth and Edie once were, move into Elspeth's London flat and through a series of developing relationships a crisis develops that could pull the twins apart.

Sixteen-year-old Gwyneth discovers that she, rather than her well-prepared cousin, carries a time-travel gene, and soon she is journeying with Gideon, who shares the gift, through historical London trying to discover whom they can trust.

In nineteenth-century London Lizzie Brown wants nothing more than to escape from the slums and her drunk, abusive father, so finding work and friends in a passing circus seems like a dream come true--but when she starts to have visions she finds herself confronting the mysterious phantom of London.