"Ellie has always wanted to go to wedding, and her hopes finally come true when her cousin asks her to be a flower girl at her wedding. Then the Critter Club gets the cutest guest Ellie has ever seen: a little French bulldog. Ellie works hard to find a home for the puppy, but she's worried she won't be able to. Suddenly she has an idea that will guarantee that the puppy lives happily ever after!"-- Provided by publisher.

In 1989 someone is threatening to steal the crown jewels, so the Queen of England summons Mac B. to England to protect them--and when they are stolen from a locked dungeon cell, where Mac and Holcroft, one of the warders, are supposed to be guarding them, it is up to Mac to figure out how they were stolen, and whether the thief is the descendant of an Irish soldier-of-fortune who tried to steal them in 1671, or someone else entirely.

A lovable dog helps his human girl solve a mystery. Kayla made peanut butter treats for Jillian's new puppy Thor. But now the treats are missing. What does Kayla know? There are three treats missing. King was in the kitchen. King's breath doesn't smell like peanut butter. What does King know? There's an intruder in the house. How will they solve the mystery?

Howie the wirehaired dachshund tries his paw at writing a new kind of novel, a mystery in which he imagines himself as a private investigator and Delilah as the "mysterious dame."

Nancy Drew investigates when a doll goes missing at a sleepover party.

While visiting New York's Yankee Stadium with Kate's mother, cousins Mike and Kate decide to investigate the rumor that the ghost of Babe Ruth is haunting the stadium.

Before becoming the first female private investigator in Botswana, eight-year-old Precious Ramotswe tracks down a thief who has been stealing her classmates' snacks.

"In her chapter book debut, Nancy Clancy must find the culprit when a prized possession goes missing at school"--Provided by publisher.

Eleven-year-old Harriet keeps notes on her classmates and neighbors in a secret notebook, but when some of the students read the notebook, they seek revenge.

Twelve-year-old Candice Miller is spending the summer in Lambert, South Carolina, in the old house that belonged to her grandmother, who died after being dismissed as city manager for having the city tennis courts dug up looking for buried treasure--but when she finds the letter that sent her grandmother on the treasure hunt, she finds herself caught up in the mystery and, with the help of her new friend and fellow book-worm, Brandon, she sets out to find the inheritance, exonerate her grandmother, and expose an injustice once committed against an African American family in Lambert.

Nancy is called in to help find a missing will. True to her reputation as a good detective, Nancy tracks down every possible lead in her quest.

Having run away with her younger brother to live in the Metropolitan Museum of Art, twelve-year-old Claudia strives to keep things in order in their new home and become a changed person and a heroine to herself.

When a puppy who is being trained as a police dog goes missing, third-grader Judy forms a detective agency to solve the mystery, imitating her literary heroine, Nancy Drew.

New kid in school Spaulding Meriwether teams with cool kid Marietta, her euphonium-playing sister Lucy, and popular jock Kenny to investigate a mysterious boa constrictor that lives next door to Spaulding that may have eaten its owner.

Someone's stealing the squirrel's nuts, and it's up to Detective Gordon to catch the thief. Unfortunately, solving this crime means standing in the snow and waiting for a long time... If only he had an assistant -- someone small, fast, and clever -- to help solve this terrible case. Then Detective Gordon would be able to go back to doing what he's best at: thinking, eating cakes, drinking tea, and stamping important papers.-- Dust jacket

"Two middle-grade kids take a shortcut home from school and discover what looks like fuzzy mud but is actually a substance with the potential to wreak havoc on the entire world"-- Provided by publisher.

Enola Holmes, much younger sister of detective Sherlock Holmes, must travel to London in disguise to unravel the disappearance of her missing mother.

"Imagines an alternate 1826 London, where Ada Lovelace (the world's first computer programmer) and Mary Shelley (author of Frankenstein) meet as girls and form a secret detective agency. Their first case involves a stolen heirloom, a false confession, and an array of fishy suspects"-- Provided by publisher.

"Lockwood & Co. are hired to investigate Edmund Bickerstaff, a Victorian doctor who reportedly tried to communicate with the dead, while Lucy is distracted by urgent whispers coming from the skull in a ghost jar"-- Provided by publisher.

Washed ashore as a baby in tiny Tupelo Landing, North Carolina, Mo LoBeau, now eleven, and her best friend Dale turn detective when the amnesiac Colonel, owner of a café and co-parent of Mo with his cook, Miss Lana, seems implicated in a murder.

Grisha the dragon is born in the Black Forest in 1803, the last year any dragon was born, and while young he was trapped by the emperor's sorcerer, and turned into a teapot, which was frustrating but kept him alive while magic and other dragons were disappearing--until one day he meets Maggie, a poet's daughter, and the two of them set out to discover what happened to all the other dragons.