While his father works two jobs, seventh-grader Efrén Nava must take care of his twin siblings, kindergartners Max and Mia, after their mother is deported to Mexico. Includes glossary of Spanish words.

Catrina and her family have moved to the coast of Northern California for the sake of her little sister, Maya, who has cystic fibrosis--and Cat is even less happy about the move when she is told that her new town is inhabited by ghosts, and Maya sets her heart on meeting one.

A devastated teenaged girl sets out on a quest to track down transplant recipients after she discovers that her older brother was an organ donor.

After the humans leave their cave, Lucy and Andy decide to start an explorer's club with their new friends.

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.

While working at pleasant but mundane summer jobs in San Francisco, fifteen-year-old twins, Sophie and Josh, suddenly find themselves caught up in the deadly, centuries-old struggle between rival alchemists, Nicholas Flamel and John Dee, over the possession of an ancient and powerful book holding the secret formulas for alchemy and everlasting life.

"When an animal rights action at a research lab goes wrong, a terrible secret is exposed, and Shay must find her brother Odin before the researchers at Singular Corp can silence both of them"--Provided by publisher.

"The Kidd children--including twelve-year-old twins Rebecca and Bickford--follow mysterious clues that take them from China to Germany, in the hopes of finding their missing father and the treasure that will finally free their kidnapped mother"--

Cordelia Carstairs, a Shadowhunter trained to battle demons, travels with her brother to London where they reconnect with childhood friends but soon must face devastating demon attacks in the quarantined city.

"A boy must rescue his sister after she finds - and wants to stay - in an almost-world beneath her bed, where their mother is still alive"--