Lunch Lady and the Summer Camp Shakedown by Jarrett J Korsoczka

In the fourth book in the Lunch Lady series both the lunch ladies and the kids are hoping for a nice holiday and are surprised to end up at the same summer camp. It's not going to be a relaxing vacation, though, with a horrible swamp monster running rampant and spoiling all the fun!

A Write and Wong Mystery: The Case of the Prank that Stank by Laura J Burns and Melinda Metz

From chapters.ca:
B. Orville Wright has Asperger's Syndrome - and a genius level IQ. He's not popular, but he and his best friend, Agatha Wong, are great detectives. When a prank goes wrong and the field house is burned down during Placid Middle School's annual football game, Agatha and Orville smell foul play.

Half Moon Investigations by Eoin Colfer

From chapters.ca:
Ever since he can remember, 12 year old Fletcher Moon has had to suffer the nickname Half Moon because of his short stature. However, what Fletcher lacks in height he makes up for in brains, because Fletcher Moon is the youngest qualified private detective in the world. To achieve this extraordinary feat, Fletcher changed his age on his birth certificate and signed up for an Internet diploma course. He graduated top of his class and received a gold plated detective's shield for his effort. Armed with his prized shield, Fletcher takes on various petty crime cases in his school. Things are going pretty well until one day his shield is stolen and Fletcher is caught up in an investigation involving the town's biggest crime family. Grievous bodily harm, arson, and dangerous undercover work ensue as Fletcher is framed for several crimes he did not commit. He is forced to go on the run from the authorities with twelve hours to find the guilty party - or he is the guilty party.

Something Rotten: A Horatio Wilkes Mystery by Alan Gratz

From chapters.ca:
Something is rotten in Denmark, Tennessee, and it is not just the polluted Copenhagen River. Hamilton Princes father has been murdered, according to a hidden video message. Horatio Wilkes, Hamiltons best friend, is visiting the Prince mansion when the video turns up. The guys need to find the killer before he strikes again. But it wont be easy. Suspects are plentiful. Olivia Mendelssohn may be hot (and Hamiltons ex-girlfriend), but she's also an environmentalist determined to clean up the river that the Prince paper plant has been polluting for decades. Trudy, Hamiltons mom, has recently married her husbands brother, Claude, and signed over half of the plant and its profits to him. Not to mention Ford N. Branff, media mogul and Trudys college flame, who wants to buy the plant for himself. The question is motive, and Horatio Wilkes is just the kind of guy who can find things like that out. Doesn't matter that hes only a junior in high school. A smart, hip, and funny twist on the tale of "Hamlet," where one-liners crackle and mystery abounds. Think you already know the story? Think again.

Skulduggery Pleasant: Playing with Fire by Derek Landy

The Sequel to Skulduggery Pleasant.
From the back of the book:
Valkyrie Cain - once known to the world as twelve-year-old Stephanie Edgley - has learned a great deal since beginning her apprenticeship to Skulduggery Pleasant, the well-dressed living-dead wizard-dective. But she hasn't learned nearly enough to defeat an old for of Skulduggery's, Baron Vengeous, and his horrible Grotesquery - an unkillable monster assembled from the most fearsome beasts of legend.

Skulduggery Pleasant by Derek Landy

From chapters.ca:
Meet Skulduggery Pleasant. Ace Detective, Snappy Dresser, Razor–tongued Wit, Crackerjack Sorcerer, and Walking, Talking, Fire-throwing Skeleton — as well as ally, protector, and mentor of Stephanie Edgley, a very unusual and darkly talented twelve-year-old. These two alone must defeat an all-consuming ancient evil. The end of the world? Over his dead body.

I would recommend this to anyone who loved Artemis Fowl....or anyone, really. An hilarious page turner that kept me laughing out loud and flipping pages to find out what was going to happen next. My current favourite new book!

A sequel is coming out in June.

Private I. Guana: The Case of the Missing chameleon by Nina Laden

From chapters.ca:
Leon the chameleon is missing! But ace detective Private I. Guana is on the case.

The Eyre Affair by Jasper Fforde

From chapters.ca:
The word "unique" is overused and frequently misused. Here, however, is an instance where it truly applies. But to call The Eyre Affair a unique first novel featuring a fearless fictional adventurer barely begins to tell the story. When asked to summarize his creation is a single sentence, Jasper Fforde described it as "a literary detective thriller with romantic overtones, mad-inventor uncles, aunts trapped in Wordsworth poems, global multinationals, scheming evildoers, an excursion inside the novel Jane Eyre, dodos, knight-errant-time-travelling fathers, and the answer to the eternal question: Who really wrote Shakespeare's plays?" Swindon, a traditionally tranquil English town, is the ironic setting for most of these oddball characters and peculiar goings-on; the year is 1985.

Nancy Drew Mystery Stories by Carolyn Keene

Nancy Drew mysteries have been favourites of young girls for decades. They have recently been turned into a series of graphic novels. The originals are now somewhat dated.

The Case of the Elevator Duck by Polly Berrien Berends

From the back of the book:
What does a young detective do when he finds a lost duck in the elevator of his housing project? Elementary: he tries to find the duck's owner. But if No Pets Of Any Sort are allowed in the projects, who is going to admit he's lost a duck? Detective Gilbert doesn't even dare to tell anybody he's found one! How Gilbert cleverly solves these problems - and makes the case - makes a humorous story of detection and city life.

The Adventures of Sherlock Holmes by Sir Arthur Conan Doyle

Sherlock Holmes is possibly the most famous literary character ever invented. Anyone who enjoys mysteries should read at least some of Sir Arthur Conan Doyle's stories.

Chasing Vermeer by Blue Balliett, illustrated by Brett Helquist

From chapters.ca:
When a book of unexplainable occurrences brings Petra and Calder together, strange things start to happen: Seemingly unrelated events connect; an eccentric old woman seeks their company; an invaluable Vermeer painting disappears. Before they know it, the two find themselves at the centre of an international art scandal, where no one is spared from suspicion. As Petra and Calder are drawn clue by clue into a mysterious labyrinth, they must draw on their powers of intuition, their problem solving skills, and their knowledge of Vermeer. Can they decipher a crime that has stumped even the FBI?

There are puzzle for the reader to solve within the book and codes to decipher. A fun read.

The Cat Who Series by Lilian Jackson Braun

The Cat Who series by Lilian Jackson Braun is a great series of mysteries that are solved, at least in part, by a pair of Siamese cats. There are a large number of books in the series, they are listed in order on Wikipedia

The Ear, the Eye, and the Arm by Nancy Farmer

From the back of the book:
Zimbabwe, 2194: The three children of the wealthy and powerful General Matsika steal out of the house on a forbidden adventure - and promptly disappear. Their parents call in the best detectives in Africa, or at least the most unusual: the Ear, the Eye and the Arm, whose exposure to nuclear waste has given them powers far beyond those of other human beings. Their mission takes them to the underbelly of the city, where truth and lies are often the same; to the toxic and dangerous Dead man's Vlei, ruled by the tyrannical She-Elephant; to the swaying top of the luxurious Mile-High MacIlwaine Hotel. Yet the children stay just out of their reach. The evils of the past, the technology of the future, criminals with plans far beyond what anyone can imagine - can the Ear, the Eye and the Arm snatch the Matsika children from the heart of it all?

How Come the Best Clues are Always in the Garbage? by Linda Bailey

From chapters.ca:
When $1,000 disappears off the kitchen table in the Diamonds' apartment, the Garbage Busters are in the hole for a lot of money. And worse still, although there are oodles of suspects, there are no clues - that is, until 11-year-old detective Stevie Diamond takes up the case!

Rabbi Mysteries by Harry Kemelman

Rabbi David Small solves mysteries in this series of books by Harry Kemelman.

Father Brown by G. K. Chesterton

Father Brown is an unassuming priest, but he always seems to be at the scene of a crime or mystery and he has an uncanny knack for solving them.

The Thirty-Nine Steps by John Buchan

From chapters.ca:
Richard Hannay, who, despite claiming to be an 'ordinary fellow', is caught up in the dramatic race against a plot to devastate the British war effort. Hannay is hunted across the Scottish moors by police and spy-ring alike, and must outwit his intelligent and pitiless enemy in the corridors of Whitehall and, finally, at the site of the mysterious thirty-nine steps.

Nate the Great by Marjorie Weinman Sharmat, illustrated by Mark Simont

Nate the Great solves mysteries around his neighbourhood in a large number of easy readers and short novels by Marjorie Weinman Sharmat.

And Then There Were None by Agatha Christie

First, there were ten--a curious assortment of strangers summoned as weekend guests to a private island off the coast of Devon. Their host, an eccentric millionaire unknown to all of them, is nowhere to be found. All that the guests have in common is a wicked past they're unwilling to reveal--and a secret that will seal their fate. For each has been marked for murder. One by one they fall prey. Before the weekend is out, there will be none. And only the dead are above suspicion.