Irish orphans Molly, fourteen, and Kip, ten, travel to England to work as servants in a crumbling manor house where nothing is quite what it seems to be, and soon the siblings are confronted by a mysterious stranger and the secrets of the cursed house.

"Tthirteen-year-old tetherboy Chess and his crew may have escaped the slums, but they cannot escape the Fog. When they retreat to the mountaintop sanctuary of Port Oro, they discover that the deadly white mist will soon swallow the entire city. Will the slumkids be able to save Port Oro, or will they run out of time?"--

Twelve-year-old Roo Fanshaw, who has a talent for hiding, is sent to live with his estranged uncle in his on Cough Rock Island, where he discovers the secrets of the largely uninhabited house and its hidden garden.

It's the summer of 1863, and as the Civil War rages between dinosaur-mounted armies down south, and a tense New York City seems on the brink of exploding into riots, Magdalys Roca and the other children at the Colored Orphan Asylum are trying to survive. But when she receives a letter telling her that her brother Montez was wounded, Magdalys knows that somehow she must reach him--and just possibly her ability to communicate telepathically with dinosaurs...

Orphaned after a fever epidemic, Creel befriends a dragon and unknowingly inherits an object that can either save or destroy her kingdom.

When Miss Penelope Lumley receives an invitation to speak at her alma mater on the occasion of the Celebrate Alumnae Knowledge Exposition, she expects the trip to be a piece of cake -- or rather, CAKE. But preparing a great oration in the style of Cicero is the least of her problems. The Swanburne board of trustees is now led by none other than Judge Quinzy, and Baroness Hoover is wreaking mayhem on the school's beloved traditions. Meanwhile, Lord...

Can a clever girl inventor uncover a ruthless pirate's heart of gold?

Siblings Amy and Dan must find another way to outwit the Vespers when they target and kidnap Dan's only friend, eleven-year-old Atticus.

"An African-American middle schooler who has recently lost both his parents sees a ghost wearing old-fashioned clothing in the basement of the New York Public Library"--

Thirteen-year-old Dan Cahill and his older sister, Amy, thought the search for the thirty-nine clues leading to the source of their family's power was over, but when Cahills are kidnapped by the Vespers, Amy and Dan find themselves with only a few day to fulfill a bizarre ransom request before their friends start dying.