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It's time for the alpaca costume contest, and Abigail "Abbi" Wallace is excited to see it at the Maine State Fair. But there’s only one alpaca left—the rest are missing! What sent the alpacas packing? Abbi; her dog, Barkley; and her friends Lydia and Daniel are ready to sniff out this mystery!

Join Frank and Joe Hardy on their very first mystery adventure in The Tower Treasure! When a daring robbery leaves their friend’s family in dire straits, the Hardy boys take it upon themselves to uncover the truth and clear his name. Their search leads them to hidden clues, suspicious characters, and a mysterious old tower that holds secrets of its own.

Visiting Ruby Mountain during a class trip, Eddie spots enormous tracks on the dirt trail and becomes convinced that the prints belong to the square-dancing teacher, a large, hairy man who resembles Bigfoot.

Raj can’t find his cat. The cat’s name is Blue, but he is actually a gray cat with dark stripes and yellow eyes. Blue doesn’t go outside, and all the doors were closed. Where could Blue be?

In the prequel to the number one bestselling Alex Rider series by Anthony Horowitz, contract killer Yassen Gregorovich is given orders to kill Alex. But Yassen knows a secret from the past that connects him to the fourteen-year-old spy. What is it that makes one of them choose to do evil, and what does it take to turn him into a killer?

Frank and Joe Hardy, erstwhile teenage detectives, feel somewhat foolish after accepting a counterfeit bill while helping a stranger at the Bayport train station. Over a period of weeks, friends and family members fall prey to exchanges with counterfeiters, sometimes in transactions amounting to hundreds of dollars. Frank and Joe's father, the highly esteemed private detective Fenton Hardy, is working with the Secret Service to track down the counterfeiting ring, but thus far they haven't had much luck.

Baker Street Four follows Billy (Charlie Brand), Charlie (Kiki May), and Tom (Nathan Moses), three young apprentices of Sherlock Holmes (Paterson Joseph) who assist the famous detective in London’s dodgy East End. With the help of their faithful cat, Watson (Bill Nighy) and Sherlock’s beloved housekeeper Mrs. Hudson (Celia Imrie), this foursome takes local crimes into their own hands while Holmes is off solving mysteries abroad. Follow the Baker Street Irregulars as they pursue different cases, growing by the day as young detectives and as friends.

Third-grader Aven Green has been solving mysteries for a really long time—a whole month! She has solved many important cases like The Mystery of the Cranky Mom, The Mystery of the Missing Ice Cream, and The Mystery of the Smelly Feet. Her record is nearly 100 percent, with only The Mystery of the Cereal in My Underpants remaining unsolved to this day. Aven asks all the right questions, wields her detective kit carefully, and follows up on every clue. Then her teacher’s lunch bag, with her lunch still in it, is taken, and Aven’s great-grandma’s beloved dog goes missing.

Nine-year-old Nicholas Benedict has more problems than most children his age. Not only is he an orphan with an unfortunate nose, but he also has narcolepsy, a condition that gives him terrible nightmares and makes him fall asleep at the worst possible moments. Now he's being sent to a new orphanage, where he will encounter vicious bullies, selfish adults, strange circumstances—and a mystery that could change his life forever. Luckily, he has one important thing in his favor: He's a genius.

Melody is certain that her new basketball coach, Mr. O'Grady, is a leprechaun. Bailey School Elementary's new gym teacher is short, and Irish, and carries a bag filled with special stones. Soon, Melody and the other children are keeping an eye on him. When will they get lucky and catch a leprechaun?

Eddie's great aunt Mathilda is sick and he has to help take care of her. But when Eddie and his friends visit Mathilda's house, strange things start to happen. Howie sees someone staring at him from the attic window and, when his back is turned, his garlic potato chips are used to spell the word attic on the ground. During later visits, the kids hear noises from the attic, but Great Aunt Mathilda swears there's nothing up there.

Los palos de Vicky, la campeona de golf, han desaparecido. Este es un caso para el famoso detective privado de Ciudad Amable Sabueso Orejotas y su ayudante, el gato Floro. La escritora Luisa Villar Liébana regresa con otro de sus famosos detectives, tan perspicaz e inteligente como la gallina Cloti, y una historia de suspense que defiende la justicia. Esta nueva aventura de Sabueso Orejotas hará las delicias de los más jóvenes amantes del misterio y las historias policiacas.

Sabueso Orejotas, el detective privado más famoso y respetado de Ciudad Amable, y su ayudante, el gato Floro, investigan una serie de robos en el supermercado: alguien se está llevando todos los salchichones. La escritora Luisa Villar Liébana regresa con otro de sus famosos detectives, tan perspicaz e inteligente como la gallina Cloti, y una historia de suspense donde la amistad es la gran protagonista. Esta nueva aventura de Sabueso Orejotas hará las delicias de los más jóvenes amantes del misterio y las historias policiacas.

Lucas, el pollo que ayuda todas las noches a la gata maga durante su espectáculo, ha desaparecido. El detective privado más famoso de Ciudad Amable, Sabueso Orejotas, y su ayudante, el gato Floro, se pondrán manos a la obra para descubrir dónde se ha metido Lucas. La escritora Luisa Villar Liébana regresa con otro de sus famosos detectives, tan perspicaz e inteligente como la gallina Cloti, y una historia de suspense que demuestra que a veces no todo es lo que parece en un principio.

Un misterioso ladrón está robando los tesoros de Ciudad Amable y solo el Sabueso Orejotas, el investigador privado más famoso de toda la ciudad, y su ayudante, el gato Floro, pueden descubrir quién se esconde detrás de los delitos y hacer triunfar la verdad y la justicia. Luisa Villar Liébana regresa con otro de sus famosos detectives, tan perspicaz e inteligente como la gallina Cloti, y un enigma que hará las delicias de los más jóvenes amantes del misterio y las historias policiacas.

In the first book of the Capital Mysteries—an early chapter book mystery series featuring fun facts and famous sites from Washington, D.C.—KC Corcoran always watches the news. So it's no surprise that she notices right away when the President of the United States starts acting funny on TV.

The new director at Camp Lone Wolf seems like a nice guy. But when the kids learn the legend of a local boy who disappeared and the wolf that prowls the campgrounds howling in the night, they start to wonder if Camp Lone Wolf is more than just a name. Mr. Jenkins is covered in hair, eats his meat almost raw, and has an obsession with wolves. But could he really be a werewolf?

Teenage spy Alex is in the South of France, hoping to sever his links with MI6. But when a sudden attack on his hosts plunges Alex back into a world of violence, he soon uncovers a plan called Eagle strike - a discovery more terrible than anything he could have imagined.

Rosamond is having a birthday party for her cousin Lizzy! Nate the Great and his dog, Sludge, are invited. So are Lizzy's four pet snakes. Nate believes that a good detective knows his limits. Nate does not want to go to a birthday party filled with dangerous, slimy guests. But when one of these "guests" goes missing, Nate and Sludge must face their fears to save the day!

Meeting another builder had been one thing, but to learn there was a whole city out there was a bit much for Steve to swallow. As much as he hates to admit it, he’s nervous. Nervous about the idea of leaving the home he’s made for himself, of leaving the village behind, of meeting other builders and perhaps, learning that he’s not the best of the best. For so many years he’s just been Steve, the only builder. Steve, the Hero. What if he isn’t the only Hero out there? Worse still, what if no one needs him around at all?