space and time

When he moves from Los Angeles to Providence, Rhode Island, Kenny discovers that his new house is haunted by the spirit of a black slave boy who asks Kenny to return with him to the early nineteenth century and prevent his murder by slave traders.

Twelve-year-old Nat, with help from family, friends, and his "pet" Woody, a wolf that turns into a boy, must face werewolves that have been altered as part of a dastardly plan.

When eleven-year-old Olive and her distracted parents move into an old Victorian mansion, Olive finds herself ensnared in a dark plan involving some mysterious paintings, a trapped and angry nine-year-old boy, and three talking cats.

Even as he grows stronger and closer to discovering the secret of his identity, Arthur must face further dangers and conflicts as he struggles to attain the Sixth Key from the powerful Saturday.

When Arthur is drafted into the Glorious Army of the Architect by Sir Thursday, he must survive basic training, avoid getting posted to the Front, and figure out how to free Part Four of the Will, while Leaf tries to banish Arthur's doppleganger on Earth.

When the Depression hits in Cairo, Illinois, and Oscar Ogilvie's father must sell their home and vast model train set-up to look for work in California, eleven-year-old Oscar is left with his dour aunt, where he befriends a mysterious drifter, witnesses a stunning bank robbery, and is suddenly catapulted onto a train that takes him to a different time and place.

As Arthur Penhaligon seeks to find the seventh key, complete his quest to save the Kingdom to which he is heir, and learn his true identity, he discovers that he has a greater purpose than he could have imagined.

Still holding the fourth key, Arthur Penhaligon receives a suspicious offer from Lady Friday and travels to the Middle House to find out if he should accept it.

Kate, Michael, and Emma have passed from one orphanage to another in the ten years since their parents disappeared to protect them, but now they learn that they have special powers--and a fearsome enemy--and embark on a prophesied quest to find a magical book.

Ten-year-old Matt and six other children travel to 1776 Boston, living out American history as they meet Benjamin Franklin, learn about colonial medicine, and become part of a rebel spy ring.