While visiting her Aunt Clare at the old family home, she discovers an eerily-haunted dollhouse in the attic—an exact replica of the family home. Whenever she sees it, the dolls, representing her relatives, have moved. Her aunt won't listen to Amy's claims that the dolls are trying to tell her something. This leads Amy to research old news reports where she discovers a family secret—the murder of her grandparents. The two sisters unravel the mystery. Amy grows to accept her sister and to understand that Louann is more capable than she had first thought.

    To the surprise of many, the Topham family will inherit wealthy Josiah Crowley's fortune, instead of deserving relatives and friends who were promised inheritances. Nancy determines that a clue to a second will might be found in an old clock Mr. Crowley had owned and she seeks to find the timepiece. Her search not only tests her keen mind, but also leads her into a thrilling adventure.

    When diphtheria strikes the village and the children of Clifton start dying, Jessie's mother sends her on a dangerous mission to bring back help. But beyond the walls of Clifton, Jessie discovers a world even more alien and threatening than she could have imagined, and soon she finds her own life in jeopardy. Can she get help before the children of Clifton, and Jessie herself, run out of time?

    Before they know it, the two find themselves at the center of an international art scandal, where no one — neighbors, parents, teachers — 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 left even the FBI baffled?

    When their beloved aunt--matriarch of the world's most powerful family--dies, orphaned siblings Amy and Dan Cahill compete with less honorable Cahill descendants in a race around the world to find cryptic clues to a mysterious fortune.Book includes game cards which the reader may use to play an online version of the treasure hunt.

    But though the lake is long gone and the resort faded away, the houses still hold a secret life: two people who have never left Gone-Away...and who can tell the story of what happened there.

    The Falconers are facing life in prison - unless Aiden and Meg can follow a trail of clues to prove their innocence. The problem? They're trapped in a juvenile detention center. Until they escape one night - and find themselves on the run, both from the authorities and from a sinister attacker who has his own reason to stop them. The Falconers must use their wits to make it across the country - with plenty of tests along the way.THE CHASE IS ON.

    This first one, "The Tower Mystery," introduced the action, mystery, and suspense themes. The boys continue to deliver thrills to this day.It all starts with the boys, Frank and Joe, on their motorcycles delivering important papers to a lawyer in Willowville for their father, Fenton Hardy. He's the well-known private investigator in Bayport. A reckless driver almost forces them over the embankment. It is not long before they find that their friend Chet's yellow jalopy has been stolen, possibly by the same red-haired driver! Stolen loot may be the issue. Later a dying criminal confesses that the loot has been stashed "in the tower" and the Hardy Boys make an astonishing discovery.

    As much as he'd love to sing the praises of his book (he is very vain), he wouldn't want you to hear about his brave 11-year old heroes, Cass and Max-Ernest. Or about how a mysterious box of vials, the Symphony of Smells, sends them on the trail of a magician who has vanished under strange (and stinky) circumstances. And he certainly wouldn't want you to know about the hair-raising adventures that follow and the nefarious villains they face. You see, not only is the name of this book secret, the story inside is, too. For it concerns a secret. A Big Secret.

    Now Sammy's witnessed a crime at the Heavenly Hotel-a light fingered thief stealing $4,000 from Madame Nashira, the astrologer with the fire-hazard hair-do. Thing is, while she was watching him, he was watching her, too...Fast-paced and funny, packed with menacing suspects and clever clues, the Sammy Keyes mysteries keep you guessing to the last riveting page.

    Westing's will. And though no one knows why the eccentric, game-loving millionaire has chosen a virtual stranger—and a possible murderer—to inherit his vast fortune, one thing's for sure: Sam Westing may be dead ... but that won't stop him from playing one last game!

    But from the start, everything goes wrong. The worst part of it all is that she and her best friend, Leo, with whom she's shared every birthday, are on the outs and this will be the first birthday they haven't shared together. When Amanda turns in for the night, glad to have her birthday behind her, she wakes up happy for a new day. Or is it? Her birthday seems to be repeating iself. What is going on?! And how can she fix it? Only time, friendship, and a little luck will tell. . .

    None of the things which Kenny called his own remained. Even the painted walls and skylight were gone. Baffled, he wondered if other things — even outside — had changed. Kenny went to one of the windows and looked down. On a stoop across the dark street a man was standing, gazing straight at Kenny's window. He was wearing what appeared to be a long black cape which reached his knees, and a hat, triangular in shape. Its brim obscured his face. As if suddenly realizing he was being observed, the man moved quickly into the shadows. Keeping his face averted, he fled up the street.

    They've known each other for practically forever, sit next to each other in class, help each other with homework, and always stick up for each other. Justin never says things like, "Amber Brown is not a crayon." Amber never says, "Justin Time." They're a great team—until disaster strikes. Justin has to move away, and now the best friends are fighting. Will they be able to work it out before it's too late?

    There was a terrible mistake - Wayside School was built with one classroom on top of another, thirty stories high (The builder said he was sorry.) Maybe that's why all kinds of funny things happened at Wayside-especially on the thirteenth floor.