What if you inherited Sherlock Holmes's book of unsolved cases? Xena and Xander Holmes have just discovered they're related to Sherlock Holmes and have inherited his unsolved casebook! The siblings set out to solve the cases their famous ancestor couldn't, starting with the mystery of a prized painting that vanished more than a hundred years ago. Can two smart twenty-first-century kids succeed where Sherlock Holmes could not? Modern technology meets the classic detective story in The 100-Year-Old Secret, the first in Tracy Barrett's terrific new mystery series that will intrigue young sleuths everywhere!

In this suspenseful, gripping novel, teen twin girls raised separately meet for the first time at their mother's funeral. Quinn has been trained to never tell a lie. Piper is a practiced liar. Narrated in both voices, the story of their quest to learn truths that have been concealed from them is shadowed by a dark spell that beckons them to run at night with a pack of murdering ghost hounds. Suspense, menace, mystery, witchcraft, family secrets, mistaken identity, and romance are interwovenin a brilliantly written page-turner that will grab and thrill teen readers.

A trip to the Rockies to snowboard? Cool. Hanging out with champion snowboarders on the mountain? Really awesome! When twins Cody and Otis Chandler, along with their cousin Rae, join their dad at the Shadow Mountain Lodge, they're expecting a relaxed vacation. But after a series of strange and dangerous “accidents” aimed at two rival snowboarders, the twins set out to discover what's going on--before someone gets killed.

From the moment Otis and Cody Carson arrive on Skull Island to stay at their aunt's inn, they know something is wrong. A giant snake turns up on their aunt's bed, one of the rooms is violently ransacked, and then a celebrity guest goes missing. Could a ghost be responsible--or pirates?

Paris: city of light, catacombs, pastries…and art thieves? When Cody and Otis Chandler, their father, and their cousin Rae journey to France, they discover that there's a crime wave going on: hundreds of paintings have been stolen and replaced by forgeries. When the thief snatches their dad's painting, the twins can't resist getting involved. Will they find out the truth before it's too late? The ending involves a chase scene through the Paris catacombs--plenty of dead ends, skulls, danger, and…rats!

Look out, second grade-here comes Double Trouble! From the author of the bestselling Ready, Freddy! series comes a whole new set of adventures! Freddy's twin cousins, Kasey and Kelly, are twice the fun, and DOUBLE the TROUBLE! Twin sisters Kelly and Kasey are always getting into some kind of trouble. So of course April Fool's is their favorite holiday! This year the twins have plans to fool everyone, all day long-including the ultimate trick. This year, Kelly and Kasey are pulling a twin switcheroo! But can they fool the whole second grade?

A new generation is creating a monster.... When Doctor Victor Frankenstein died, he left behind a legacy of horror...as well as two unacknowledged, beautiful twin daughters. Now these girls are seventeen, and they've come to Frankenstein's castle to claim it as their inheritance. Giselle and Ingrid are twins, but they couldn't be more different. Giselle is a glamorous social climber who plans on turning Frankenstein's castle into a center of high society. Ingrid, meanwhile, is quiet and studious, drawn to the mysterious notebooks her father left behind...and the experiments he went mad trying to perfect. As Giselle prepares for lavish parties and Ingrid finds herself falling for the sullen, wounded naval officer next door, a sinister force begins to take hold in the castle. Nobody's safe as Frankenstein's legacy leads to a twisted, macabre journey of romance and horror.

Fifteen-year-old Pam is assaulted when she and her twin brother, Danny, are walking home through the woods. Danny is frozen with fear and does nothing; luckily, Pam is rescued by a woman out walking her dog. Pam deals with the trauma by isolating herself while Danny struggles with the shame of not protecting his sister. His shame is compounded by their father's contempt, and Danny decides to redeem himself by finding Pam's attacker. In the process, he discovers a family secret, and Pam connects with new friends who help her regain her confidence.

In a heart-pounding, atmospheric ghost story, a teenage boy must find the resources within himself to save his haunted twin brother. After their nan accidentally burns their home down, twin brothers Pat and Dom must move with their parents and baby sister to the seaside cottage they’ve summered in, now made desolate by the winter wind. It’s there that the ghost appears — a strange boy who cries black tears and fears a bad man, a soldier, who is chasing him. Soon Dom has become not-Dom, and Pat can sense that his brother is going to die — while their overwhelmed parents can’t even see what’s happening. Isolated and terrified, Pat needs to keep his brother’s cover while figuring out how to save him, drawing clues from his own dreams and Nan’s long-ago memories, confronting a mystery that lies between this world and the next — within the Grey. With white-knuckle pacing and a deft portrayal of family relationships, Celine Kiernan offers a taut psychological thriller that is sure to haunt readers long after the last page is turned.

A story by an established picture book writer about problem-solving, collaboration, creativity and compromise that shows how differences can be complementary

Callie is very proud of her brother Charlie. He's good at so many things--swimming, playing the piano, running fast. And Charlie has a special way with animals, especially their dog, Harriett. But sometimes Charlie gets very quiet. His words get locked inside him, and he seems far away. Then, when Callie and Charlie start to play, Charlie is back to laughing, holding hands, having fun. Charlie is like any other boy--and he has autism. In this story, told from a sister's point of view, we meet a family whose oldest son teaches them important lessons about togetherness, hope, tolerance, and love.

A spooky middle-grade story that's full of fun, friendship, and humor--perfect for fans of Ingrid Law and Lisa Graff. Ruby is bold and opinionated, while Olivia has always been respectful and well behaved. But Olivia’s good-girl image is tarnished when she takes the fall for her twin sister’s misdeed. And now Olivia is stuck with Ruby all summer—at a community service day camp for troublemakers. To kick off the spirit of service, the campers are tasked with cataloging the contents of Live Oaks, a historic mansion in their town. Sorting through objects in an old house sounds boring, and working together is the last thing the girls want to do, but the stuff is actually kind of cool. There’s everything from mink stoles to golf clubs to antique dolls . . . and . . . wait . . . is that doll watching them? It isn’t long until little tricks—like mysterious music playing, doors slamming, and shadows rising—start to spook the girls. They’d like to think the other campers are pranking them, but they soon realize that this empty mansion might not be uninhabited after all. To solve the mystery at Live Oaks, Ruby and Olivia will have to put their old grudges aside and figure out how to be a team. This gently creepy middle-grade story is full of all the heart, humor, and authenticity that make Rachel Hawkins a favorite with kids and teachers alike.