Robbed of the powerful object she needed to save her mother, time traveler Etta Spencer is stranded far from home and the privateer she loves before resolving to destroy the astrolabe, a mission that is challenged by a shattering revelation.

When Ellie Baum accidentally time-travels via red balloon to 1988 East Berlin, she's caught up in a conspiracy of history and magic. She meets members of an underground guild in East Berlin who use balloons and magic to help people escape over the Wall. But even to the balloon makers Ellie's time travel is a mystery. When it becomes clear that someone is using dark magic to change history, Ellie must risk everything--including her only way home--to...

When thirteen-year-olds Jonah and Chip, who are both adopted, learn they were discovered on a plane that appeared out of nowhere, full of babies with no adults on board, they realize that they have uncovered a mystery involving time travel and two opposing forces, each trying to repair the fabric of time.

"Eighteen-year-old Hannah experiences danger in the past and present, as college intern Jordan tries to uncover the truth about Hannah and her memories"--

Remy has supernatural powers. He is a Conjuror, descendant of an ancient bloodline that can change reality with music.

"The Bettarinis and Forelllis have found rich fulfillment, together in medieval Italia. But after fighting off countless enemies, they now must face the worst foe of all. As the Black Death closes in upon them, threatening everything and everyone they hold dear, Lia and Gabi--and the knights they love--must dig deep within to decide how they might remain safe...and if they need to risk it all in order to truly live as they're called:--p. [4] of cover....

A blow on the head transports a Yankee to 528 A.D. where he proceeds to modernize King Arthur's kingdom by organizing a school system, constructing telephone lines, and inventing the printing press.

After accidentally traveling back in time and rewriting the future, twelve-year-old best friends Rahim and Kasia must work together to restore their timeline.

"The last thing Jacob Portman saw before the world went dark was a terrible, familiar face. Suddenly, he and Noor are back in the place where everything began--his grandfather's house. Jacob doesn't know how they escaped from V's loop to find themselves in Florida. But he does know one thing for certain: Caul has returned. Risen from the Library of Souls and more powerful than ever, Caul and his apocalyptic agenda seem unstoppable. Only one hope remains--deliver...

Seventeen-year-old Hylee Williams didn't ask to disappear. She didn't ask to move from Kansas City, Kansas out to the suburbs in Missouri. But she did disappear, and not only that, when she vanished from out world, she materialized in a dark, twisted version of the night that changed her life forever: the night her older brother went missing. Just as Hylee realizes this moment could offer a chance to unravel the truth about her brother, she's yanked...