Sixteen-year-old Gwen, the newest and final member of the secret time-traveling Circle of Twelve, searches through history for the other time-travelers, aided by friend Lesley, James the ghost, Xemerius the gargoyle demon, and Gideon, the Diamond, whose fate seems bound with hers.

As Will Burrows continues to search for his lost archaeologist father in the strange underground world he has discovered, he stumbles across a sinister plot with terrible implications for the world above.

Things have been quieter in the Brown household since Paddington started working in the garden, but with Paddington there's always a new adventure around the corner.

When a ring is stolen from the queen, Stanley, who is on vacation in London with his family, teams up with the world-famous detectives of Scotland Yard to track it down.

In 2050, while visiting Pastworld, a Victorian London theme park, teenaged Caleb meets seventeen-year-old Eve, a Pastworld inhabitant who has no knowledge of the modern world, and both become pawns in a murderer's diabolical plan that reveals disturbing truths about the teenagers' origins.

Bully, an orphan living on the streets of London, races to cash in a winning lottery ticket while ruthless hoodlums track him down, desperate for the ticket themselves.

Emotionally crippled by his obsessive-compulsive disorder, teenager Matthew Corbin rarely leaves his room on a cul-de-sac in London, and he passes the day observing and writing down his neighbors doings from his window--but when a toddler staying next door disappears Matt is the key to solving a mystery and possibly saving a child's life...if he can manage to expose himself, and his secret guilt to the outside world.

Sixteen-year-old Bernardo, who is eight feet tall and suffers from a condition called Gigantism, leaves the Philipines to live with his mother's family in London, much to the delight of his thirteen-year-old half sister Andi, a passionate basketball player.

Amelia Wishart's Christmas spirit helped Santa get the extra boost of magic he needed to make his first trip around the world. When she's sent to the workhouse, now-orphaned Amelia's hope begins to drain away. Santa sets out to find her with the help of his reindeer, a curious cat, and Charles Dickens.

Xena and Xander Holmes, an American brother and sister who are living in England, use clues from their ancestor Sherlock Holmes' casebook when they are asked by a classmate to find an ancient Egyptian artifact that has been missing for many years.