Whether testing their own sleuthing abilities by working against the clock or enjoying the intrigue of unraveling the case, readers get lots of spine-tingling mystery in these thrilling puzzlers.

    But as far as Anna can see, ever since Elsa's coronation, her sister has been doing just fine without her. And now, Elsa will be setting sail for a grand tour of the world--leaving Anna behind. But a mysterious sickness strikes Arendelle, and Elsa's tour is delayed, giving Anna the perfect opportunity to finally help. When Anna discovers a secret room in the castle and incants a magic spell, she hopes it will make her dream of curing the sickness come true. Instead, a more sinister dream comes to life. An original middle grade novel bridging the epic adventure of Frozen with the upcoming Walt Disney Animation Studios film Frozen 2.

    Actually make that two cases. First a gorgeous Fabergé egg has been stolen. Who would have the heart to snatch such a precious family heirloom from someone new to town? Some housewarming that is! And if this isn't enough to keep me busy, someone's running through gardens and stomping on all the zucchinis. Needless to say, it's a big mess -- in more ways than one. Especially for Mr. Safer, who is suspected of squishing the squash. I'm pretty sure Mr. Safer's innocent. But who's the real vegetable vandal?

    Contains Blinky Bill, Blinky Bill Grows Up, and Blinky Bill and Nutsy.

    He and his father have journeyed to the city of Sanctaphrax – a great floating rock, bound to the ground below by a chain, its inhabitants living with their heads literally in the clouds.But the city hides a dangerous secret: deep inside the great rock, something horrible lurks. With his father away, Quint may be the only one who can save Sanctaphrax from the dreaded curse of the gloamglozer . . .The Curse of the Gloamglozer is the first book of the Quint Saga – first trilogy in The Edge Chronicles, the internationally best-selling fantasy series, which has featured on the UK and the New York Times best-seller lists and sold more than 3 million copies. There are now 13 titles and four trilogies in the series, but each book is a stand-alone adventure, so you can read The Edge Chronicles in any order you choose.

    Sighs Dinah, "I think that we are quite likely to be bad, however hard we try not to be," and her sister Dorinda adds helpfully, "Very often, when we think we are behaving well, some grown-up person says we are really quite bad. It's difficult to tell which is which." Sure enough, the mischievous sisters soon convince a judge that minds must be changed as often as socks, stage an escape from the local zoo (thanks to a witch's potion which turns them into kangaroos), and—in the company of a golden puma and silver falcon—set off to rescue their father from the tyrant of Bombardy. A tale of hilarity and great adventure, The Wind on the Moon is also a work of high seriousness; after all, "life without freedom," as the valiant puma makes clear, "is a poor, poor thing."

    Includes the following four titles: The Mystery of the Mummy's Curse, The Mystery of the Star Ruby, The Pizza Mystery, The Radio Mystery, The Summer Camp Mystery.

    (A) literary folk story at its best".--School Library Journal. Newbery Honor Book; ALA Notable Children's Book.

    His worried friends must find a way to stop him taking such a dark path. It is Halt who suggests the solution: Will must take an apprentice. The candidate Halt has in mind surprises everyone - and it's a request Will cannot refuse. Training a rebellious, unwilling apprentice is hard enough. But when a routine mission uncovers a shocking web of crime, Will must decide where his priorities lie - finishing his quest for revenge, or saving innocent lives?John Flanagan makes a spectacular return to the world of Ranger's Apprentice - but what has happened since you last saw Will and his friends might shock you!

    A trap is set for him, but he cannot be kept down. Then, when a terrible monster from outer space threatens to lay waste to the planet, it is the Iron Man who finds a way to save the world.

    This spooky addition to Alvin Schwartz's popular books on American folklore is filled with tales of eerie horror and dark revenge that will make you jump with fright.There is a story here for everyone—skeletons with torn and tangled flesh who roam the earth; a ghost who takes revenge on her murderer; and a haunted house where every night a bloody head falls down the chimney.Stephen Gammell's splendidly creepy drawings perfectly capture the mood of more than two dozen scary stories—and even scary songs—all just right for reading alone or for telling aloud in the dark.If You Dare!

    Now she discovers that in the year that's gone by, tragedy has struck and her friendship with Autumn will never be the same again. But what caused the tragedy?

    Told in alternating chapters from both Anna's and Hans' perspectives, A Frozen Heart takes a sophisticated look at events of Frozen, exploring the couple's backstories, motivations, and doomed relationship.

    Nothing much has changed in the dollhouse during that time, except for the fact that 45 years ago, Annabelle's Auntie Sarah disappeared from the dollhouse without a trace. After all this time, restless Annabelle is becoming more and more curious about her aunt's fate. And when she discovers Auntie Sarah's old diary, she becomes positively driven. Her cautious family tries to discourage her, but Annabelle won't be stopped, even though she risks Permanent Doll State, in which she could turn into a regular, nonliving doll. And when the "Real Pink Plastic" Funcraft family moves in next door, the Doll family's world is turned upside down--in more ways than one! Fans of The Borrowers and Stuart Little will love this exciting story of adventure and mystery. The relationship between the two doll families, one antique, one modern, is hilariously, wonderfully drawn. The Funcrafts are reckless and raucous, with fearlessness born of their unbreakable plastic parts. The Doll family is reserved and somewhat prim, even though they occasionally break into '60s tunes like "Respect" in their sing-alongs. Annabelle is a heroine with integrity and gumption. Ann Martin (The Babysitters Club series) and Laura Godwin create a witty, intriguing tale, illustrated with humor and a clever eye for detail by Brian Selznick. (Ages 7 to 11) --Emilie Coulter

    He’s trying to make a film starring the Kow as she battles against the Dark Contaminator. But first he has to cope with a few little problems, like exploding strawberries, rampaging toddlers and hostile football fans. After this, saving the world should be a doddle!