Thirteen-year-old Sophia Tims, with her friend Theo, continues to search for her parents, explorers who have vanished as the borders shift within a world transformed by the Great Disruption of 1799.

Twelve-year-old Fin, a master thief from the pirate world of Khaznot Quay, and Marrill, also twelve, of Arizona, cross paths in the magical world of the Pirate Stream while on a quest for a mysterious map.

When Princess Ellie finds a one-hundred-year-old treasure map, she and her best friends, Kate and Prince John, hurry to saddle up and go exploring, but the palace grounds have changed a lot since the map was drawn.

After seven members of their family are kidnapped by an organization called the Vespers, Dan and Amy Cahill must race against time to track down an ancient map to pay as ransom to bring the hostages home.

In a world transformed by 1799's Great Disruption--when all of the continents were flung into different time periods--Sophia Tims journeys home to Boston, anticipating her reunion with Theo, but he has been conscripted to fight in the Western War, Prime Minister Broadgirldle's twisted vision of Manifest Destiny.

Finley McPhee holds the scorpion key, which makes him the Defender of the Emporium in the small town of Applecross, Scotland, but now Aiby Lily and Finley's brother Doug are apparently lost in an other-worldly place called the passages, and the evil Semueld Askell has told him that if he does not surrender the key within twenty-four hours, they will be lost forever--and that is only one of his problems.

On the planet Cybertron, a war was waged between the Autobots and the Decepticons for control of the Allspark, a mystical talisman that would grant unlimited power to whoever possessed it. The Allspark is smuggled off the planet, but Megatron goes in search of it. He tracks it to Earth and his desire for power sends him into the Arctic Ocean. The sheer cold forces him into a paralyzed state. His body is later recovered, and before going into a comatose...

"Twelve year old Devlin Quick is determined to bring a thief to justice when someone steals a page out of a rare maps book in the New York Public Library"--

An adventurous cat named Sam explores her neighborhood at night, and maps of all types reveal her journey, illuminating different points of view and the various spots Sam visits.