"It was 1798 when the Morningstarr twins arrived in New York with a vision for a magnificent city: towering skyscrapers, dazzling machines, and winding train lines, all running on technology no one had ever seen before. Fifty-seven years later, the enigmatic architects disappeared, leaving behind for the people of New York the Old York Cipher -- a puzzle laid into the shining city they constructed, at the end of which was promised a treasure beyond...

When aspiring author Josh Higgins learns that his favorite author is coming to town, he and his sister Maggie convince fantasy writer P.L. Cuthbertson to take them to the magical medieval land of Wyrd World, where they find real trouble.

Devastated by loss and hampered by a civil war in the Land of the Dragons, Fifer and Simber struggle to lead the rest of their team in a seemingly hopeless search for Fifer's twin. Meanwhile, Thisbe, pounded by images of Grimere's dark history and her growing feelings of abandonment, considers leaving Rohan behind in a desperate gamble that could lead her home...or to her death. Back in Artim, chaos reigns. A new mage steps up to restore the magical...

Since the murder of the maharani of Ashoka--the country that controls all magic--the relationships between the royal siblings have fractured. At only 18, Vira has ascended to the throne, a role few in her council believe her capable of. Meanwhile, her twin brother, Ronak, is plotting to break free from a tactful marriage and taking their half-brother, Kaleb, (wrongfully imprisoned for the maharani's assassination) with him. The siblings' unease comes...

In a dark future, when North America has split into two warring nations, fifteen-year-olds Day, a famous criminal, and prodigy June, the brilliant soldier hired to capture him, discover that they have a common enemy.

Seventeen-year-old Nat and her hacker brother Sam have come to Hawaii for their parents' Final Week. Global warming has devastated the planet, and the disintegrating society that remains is run by "corporates" who keep the population complacent through a constant diet of "pharma." The few Americans who stil live well also live long -- so long that older adults, like Nat's parents, blow out not by natural means but by buying death contracts. While...

"Dr. Hank Witherspoon has disappeared. When Jack and his genius siblings, Ava and Matt, find Hank's lab ransacked, they uncover clues pointing them to Brazil--but many questions remain. Why was Hank studying dangerous electric eels? And who is trying to steal his inventions? Their investigation leads them to a soccer prodigy, his savvy sister, a business tycoon who zips around on motorized boots, and a strangely incompetent riverboat captain. In the...

"Chase has been reunited with his younger sister, Lilli. He doesn't remember his past, but Lilli does--she remembers their parents, and life before their planet was destroyed"--WorldCat.

Siblings Klatu, Lek, and Ploo from the planet Loogl return to Las Vegas where they discover an impending invasion of earth by evil aliens disguised as Elvis impersonators.

After rescuing her twin brother from the Tonton, Saba experiences disturbing telepathic visions while being hunted by a cunning enemy.