"On a spring morning, neighbors Valentina Kaplan and Oksana Savchenko wake up to an angry red sky. A reactor at the nuclear power plant where their fathers work--Chernobyl--has exploded. Before they know it, the two girls, who've always been enemies, find themselves on a train bound for Leningrad to stay with Valentina's estranged grandmother, Rita Grigorievna. In their new lives in Leningrad, they begin to learn what it means to trust another person....

Twelve-year-old CeCe Monroe is enrolled at Storm Cliff Stables as Cassidy because she does not want the other girls to know that she is an actress, so when Aunt Jane asks her to assist with the movie that is to be filmed at the stables she is mostly afraid of blowing her cover--but when she realizes that the movie man calling himself Paul Martino is not the man she knows, she finds herself cast in the role of detective.

Upon finding a mysterious pocket watch by the abandoned buildings near where he and his mother live, Reuben develops the power of invisibility, which leads to his being targeted by a band of dangerous men who are threatening the city.

Annabelle Louis is a military brat, and complete nerd who has always been homeschooled, but with her mother going on assignment in Afghanistan, she is going to have to attend middle school in Linden, New Jersey; her therapist suggests she try sports to make friends, and she creates a vlog, Daphne Doesn't, in which she makes fun of all the things that she considers a waste of time (for example, sports and school)--the vlog proves to be a big hit, but...

The arrival of a mysterious package sends Addison and his team on the run from fortune hunters, as they race across the globe in search of answers to his aunt and uncle's disappearance and to find the coveted Ring of Destiny.

Twelve-year-old Cooper Vega and his military family has moved so often that he is used to new schoolmates not knowing his name, but at the moment he has a bigger problem--his new phone is haunted by the ghost of Roderick Northrop, a boy from the sixteenth-century, who needs his help to finish a quest, which is somehow tied up in the Stratford Middle School production of Romeo and Juliet.

Twelve-year-old Marcel loves riding his bicycle, and dreams of competing in the Tour de France, but it is 1942 and German soldiers are everywhere, stopping him as he delivers bread from his parents' bakery around Aucoin--then one day he discovers that it is not just bread he is delivering, and suddenly he finds himself in possession of dangerous secrets about his parents and his new friend from Paris, Delphine.

"We shall all, in the end, be led to where we belong. We shall all, in the end, find our way home. In a time of war, a mysterious child appears at the monastery of the Order of the Chronicles of Sorrowing. Gentle Brother Edik finds the girl, Beatryce, curled in a stall, wracked with fever, coated in dirt and blood, and holding fast to the ear of Answelica the goat. As the monk nurses Beatryce to health, he uncovers her dangerous secret, one that imperils...

Best friends Gabe and Oliver tackle family problems, bullying, and the challenge of dealing with the new kid in their sixth grade class, Reuben, who refuses to talk--and no one knows why.