Diego was separated from his family in the early days of the Infection. Since then, he has moved from town to town and place to place -- getting by as best as he can. Recently, he has met and joined up with a motley crew of other survivors. After an encounter with a pack of the Infected, members of the group begin to disappear in mysterious and macabre ways. It's becomes clear that not everyone in the group is telling the whole truth. Can Diego and his new friends discover the traitor amongst them before it's too late?

Piggy. 5, Traitor

"There is a mystery to be solved, keys to be found, and an evil pig to escape! When an infection threatens to turn everyone into mindless, dangerous monsters, it is up to a few desparate survivors to get survive long enough to find a cure. But can they hold on long enough to get to the bottom of this mysterious illness, or will PIGGY and her new minons find them first? Welcome to the bone chilling, pulse-pounding world of PIGGY, the survival-horror game that will keep you up at night. Explore a frightening maze full of secrets to unearth and monsters that are out for blood! Can anyone make it out alive?"--

Piggy. 1, Infected

"Olive Jones has just inherited her grandmother's memories. But her grandma has left her more than just memories; she's left her a mystery. And now it's up to Olive to solve it. After her grandmother's funeral, Olive learns she has inherited something unexpected: her grandmother's memories. Olive is surprised - her grandmother wasn't a cuddly, affectionate kind of grandmother. Curious about what she might discover, Olive sets out to 'watch' the memories. But before she can, they're stolen right from under her nose. Olive can't understand why anybody would want to steal the memories. As far as she'd known, her grandmother had always lived an utterly ordinary life. Following the trail of the thief, Olive begins to discover that her grandmother's life wasn't what she thought. As she unravels the secrets lurking in her grandmother's past, she discovers clues Grandma Sylvie left her. It's up to Olive to solve the mystery of the memory thief, and in the process, learn about the incredible life and adventures of the grandmother she has never really known"--Publisher's description.

Olive Jones and the memory thief

"It's summer in 1880 Stockholm, and the city bakes in the heat--but the heat on twelve-year-old Mika is finally lifting. After lying low following the blast at the jail, Mika's name is finally cleared. And it's not a moment too soon--because Detective Hoff has a perplexing case involving the disappearance of a local teen. The girl's wealthy family wants to make sure things stay quiet. Why would a girl who has everything want to run away? And why is her family so afraid to go public?"--

The lost ones

"Leonie MacGregor is sick of carrots. Who wouldn’t be if you grew up on a carrot farm? But Leo’s dad is obsessed with them. He breeds carrots the way some people breed prized poodles. A series of events leads Leo to suspect someone is after her dad’s one-of-a-kind carrot seeds. With the help of her best friend Sara, Leo begins to narrow down the suspects. Is it their organic farmer neighbor who everyone calls “the Hippie”? Or maybe spies sent by the government who think her dad’s special carrots might really be worth something! Even though Leo has lots of things to do on the farm—like fixing her super awesome dirt bike—it’s up to her to save her dad’s carrots!"--

Year of the carrot

Baker by day, spy by night — Alice Éclair leads an exciting double life!  A mysterious message sends Alice on a mission aboard France's most glamorous train, the Sapphire Express . Alice must sneak on board posing as a pastry chef and discover which passenger is an enemy agent before they reach their final stop. But everyone on the train seems to be hiding something...  Armed with her whisk, her wits, and her will to succeed, Alice has a spy to catch.

A recipe for trouble

New recruit Zeb the sheep joins the flock to help crack the greatest mystery of all! But, uhh...just what is the greatest mystery of all? Pondering that conundrum is what has kept the dearly departed General Inspectre tethered to Earth long after he should have moved on to the great super-spy base in the sky. Having a ghost haunting the halls of S.U.I.T. wouldn't be so bad...except he's possessed Monocle to serve as his Earthly form! Zeb--along with Cilantro, Bongo, Marsha, and cameos from everyone's favorite Gators--must decipher the series' biggest mystery EVER to free their pal and finish the Inspectre's unfinished business!

Agents of S.U.I.T. Wild ghost chase

When Ned is cast in a stage production of Macbeth, led by the famous but peculiar director Bear Larouche, Nancy volunteers to help with the set. She's also allowed to sit in on a few rehearsals, where she gets an earful from the director about theater superstitions: never say "Macbeth" out loud--only refer to it as "The Scottish Play"--never wear blue, no peacock feathers onstage, and so on. The play is off to a promising start until Ned breaks the most important rule and accidentally says "Macbeth" in the theater. And then accidents begin happening during rehearsals. It quickly goes from odd to scary, and the director is ready to cancel the show. Nancy might not believe in superstition, but she does believe in intuition, and hers is telling her that the cause behind these incidents isn't a curse, but someone in the cast. It's up to her to find out who before opening night.

Nancy Drew diaries. #26, Superstitions of "the Scottish play"

Theodora, Sherman, and Dexter head to New York for the holidays, only to find themselves up against a horde of Shadowmongers and a sinister foe determined to take down the Monstrous League of Monsters and destroy Theodora.

Theodora Hendrix and the snare of the shadowmongers

Mystery-lover Libby is excited but nervous when she's sent to live with her aunt while her mother is working abroad. Her Aunt Agatha is the headmistress of an extraordinary travelling school that moves from country to country. Libby joins the school in Paris, where she is just starting to find her feet, when Agatha is arrested, accused of a daring jewel robbery. Can Libby and her new best friend Connie find the real thief and save her aunt?

Libby and the Parisian puzzle

The City Spies search for Cairo's missing sister in Rome before returning to London to stop an attack on the royal wedding.

London calling

"After discovering in book one that they had every reason to feel a little bit different than their peers, Edwin Edgefield and the rest of his alien-on-earth crew are primed and ready to learn all they can about their home planet. Unfortunately, that planet has been destroyed, and the one person who can help them find out where they came from--Maureen (yuck)--has no intention of helping. In fact, she has just taken off in a rocket ship bound for the moon, where the enemy Yaks awaits with a new version of her planet-destroying machine, this time aimed at earth. It will take every bit of Edwin, Julie, Kimmy and Dilip's super abilities--both mental and physical--to stop Maureen this time. Can they pass through the gauntlet of tests Maureen has set for them and infiltrate the Yaks' secret moon base before the bad guys can power up their earth-blaster, or will Maureen and the Yaks succeed in their vengeful mission?" -- Publisher annotation.

The super-secret mission to the center of the moon (pie)

Marcus and the Breakfast Club Investigators are back and better than ever, just in time for for a brand new investigation! When a treasure hunt is announced at Rutherford High, the Breakfast Club Investigators want to win. But an otherwordly monster is set on spoiling their fun. Using clues from a comic book, can Marcus and his friends uncover the truth?

The Breakfast Club adventures. 4, The treasure hunt monster

When boys start disappearing from a mysterious island monastery, Darian and his friend Micah's covert investigation reveals secrets of the Order that leave them questioning their faith.

The vanished ones

Mabel and Will Greystone are looking forward to an exciting holiday with their aunt Lucy, a famous relic hunter in the land of Marvolia. Using an ancient map, they are searching for the legendary lost town of Umber, famous for the invention of clockwork, which was mysteriously abandoned hundreds of years ago. The only other clue they have is a strange old key left behind by the last inhabitant of the town, but they have no idea what the key is for. Also on the hunt for Umber is devious Byron Cogsworth, desperate for the glory such an important discovery will bring. Can Mabel, Will and Aunt Lucy find Umber before him? And what secrets will the clockwork key unlock?

The clockwork key

"Dilly loves a good murder. Not a REAL murder. A made-up murder. One you would find in a murder-mystery novel. Sherlock Holmes is her favourite detective. She even named her dog Watson after his faithful companion, and trained him to sniff out clues and follow trails. So far, Dilly and Watson haven’t cracked many cases – beyond lost cats, or missing biscuits that turned out to have been eaten all along. But now the detective duo find themselves on a luxury ocean liner bound for London. A thousand passengers. A thousand miles of ocean around them. It's the perfect place for a murder."--

Super sleuth

"Ben was never supposed to find out about his father's mysterious past, but when a school project forces him to confront his mother, she can no longer ignore the secrets she's kept all these years.With the help of his best friend Cooper and his new dog Blue, Ben embarks on a wild journey to uncover the truth about his dad's past―and what he discovers may be stranger and more unexpected than anything he could have ever imagined."--

Ben & Blue. Searching for lucky #3002

A young artist and sleuth trying to figure out who sabotaged the maiden voyage of a new train before it explodes.

Adventures on trains. 5, Sabotage on the Solar Express

"A hilarious conspiracy thriller perfect for fans of Gordon Korman and Stuart Gibbs. In it to win it.  Every school has their number ones: the class president, the first chair in band, the spelling bee champion. And behind every high rolling high achiever? A kid in second place.  Twelve-year-old DJ has a reputation for being the go-to kid for solving just about any problem. Need help getting an unfair teacher or bully off your back? DJ is your guy. He knows the social order of Ella Fitzgerald Middle School like the back of his hand. So when the usual winners start losing ― all at the same time ― he knows something is wrong. Very wrong.  With the help of his usual crew, Audrey, Monty, and Connor, DJ is determined to get to the bottom of what’s happening. Maybe it’s all in his head. Or maybe there’s a conspiracy at work. DJ and his friends will have to figure it out ― before the school saboteur comes for them."--Amazon.ca.

Second to none

Hope and Gordon Smith navigate the complexities of their extended family, but when Elizabeth Springer goes missing, Hope reveals that she is their grandmother and follows a cryptic letter hinting at more family secrets and an estranged grandfather.

The Winterton deception. 2, Fault lines

A mysterious figure is stealing from clubs all over Rutherford High! The only clue is a strange calling card left at the scene of the crime. . . When the thief strikes just as Art Club is getting ready for a big show, everyone is worried the exhibition will be cancelled. As suspicion falls on one of the Breakfast Club Investigators, Marcus and friends must race against time to find the stolen painting and unmask the true thief before it's too late!

The Breakfast Club adventures. [3], The phantom thief

"Twelve-year-old orphan Malcolm McKenzie’s world is falling apart. His mentor, clockmaker Jack Alexander, was found dead inside a locked clock tower. His best friend — and Jack’s son — Peter is dying of a mysterious disease. His only hope: a puzzle inside a seemingly broken pocket watch that even Jack couldn’t fix. The watch, a precious heirloom passed down through a family of proud physicians, must be the key to solving Jack’s murder and a miracle cure for Peter. But shadowy figures stalk the streets of Edinburgh, scheming to steal the watch and its secrets for themselves. Malcolm, alongside pickpocket and fellow orphan Maddie, must outsmart and outrun their enemies to solve the watch’s puzzle and save the family that saved him … before Peter’s time runs out."--

The time keeper

When Arthur Conan Doyle returns to Baskerville Hall, a secretive school for extraordinary students, he's excited to begin winter term with the friends he loves. However, soon after his arrival, a dangerous foe threatens his favorite professor, Sherlock Holmes, and all signs seem to point to a force that Arthur had hoped he'd seen the last of... the Green Knight. But Sherlock isn't the only target; others begin to fall prey as well. The question is: how are they all connected? In the ultimate race against time, Arthur will have to dodge old enemies, befriend new faces, and brave encounters with spirits to solve the mystery before it's too late. But there are more puzzles to solve than one; it seems a new term at Baskerville Hall may not only test Arthur's wits... but his friendships too.

The improbable tales of Bakersville Hall. Book 2, The sign of the five

"Evie ventures into the Dark Sun Side to rescue her parents and discovers truths darker than she could have ever imagined"--

The loneliest place

"After facing down an evil hag, a thieving skele-crow and an army of the undead, ten-year-old Theodora Hendrix is certain she can handle anything--that is, until she meets the unpleasant Inspector Shelley and her even more unpleasant pet rat. Shelley and Ratsputin have come to spy on the MLM, and are determined to make trouble at every turn. Then Theodora makes a discovery of her own: a cursed beetle. She needs to destroy it without attracting the attention of the inspector--and fast. The stakes couldn't be higher: if Theodora fails, her beloved monster family will rot in the dankest, darkest prisons of Transylvania"--Publisher's description.

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Mystery