Showing titles in Mysteries

Three complete stories in one collection! Includes The Mystery of the Mummy's Curse, The Mystery of the Star Ruby, and The Stuffed Bear Mystery.

It is 1884, and Molly and Cassandra Pepper, Emmett Lee, and Emmett’s long-lost father are sailing back to New York following their death-defying adventure in Antarctica. Having discovered a subterranean world at the South Pole while saving the world from certain doom once again, surely their accomplishments will finally earn them the recognition they deserve. Unless, of course...well, you know by now. And so do the Peppers and Lees.

As I rounded the corner, I spotted Rick just ahead. He paused and bent down to poke at something on the ground by his feet, muttering something that I couldn't make out due to the wind. WHOOSH! I gasped and jumped back as a huge pile of snow slid off the roof of the ski shack, completely burying Rick!

England is in trouble! A priceless violin has been stolen, and there's only one person who can help: Mac B., kid spy. Mac's adventure takes him on a top-secret museum night watch, zip-lining in Italy with his trusty corgi sidekick, and on an undercover mission in the heart of enemy territory. But when he ends up as a captured prisoner, is the mission lost for good?

This is the original 1927 story of The Tower Treasure: The Hardy Boys Book 1. Frank and Joe Hardy, brothers who are high school students, use their investigation skills to solve the mystery of the stolen treasure from the eccentric Applegates. After finally finding out who did it, the dying criminal confesses that the loot had been hidden “in the old tower.” The tower is searched in vain, but it remained for the Hardy boys to make an astonishing discovery that cleared up the mystery.

Henry, Jessie, Violet, and Benny are working in a general store, to help out a friend of Aunt Jane’s. It seems to the children that the young girl who works in the store is behaving very strangely. She seems nervous and won’t answer any questions about her past. Then a strange man comes to the store asking about her. What secret is the mystery girl hiding?

Dink, Josh, and Ruth Rose have hidden Easter eggs for the younger kids to find. Bradley, Brian, Nate, and Lucy have no trouble finding the plastic eggs. But some of the golden eggs disappear! Can the four kids track down the thief?

It's 1929, and 12-year-old Martha has no choice but to work as a maid in the New York City mansion of the wealthy Sewell family. But, despite the Gatsby-like parties and trimmings of success, she suspects something might be deeply wrong in the household - specifically with Rose Sewell, the formerly vivacious lady of the house who now refuses to leave her room. The other servants say Rose is crazy, but scrappy, strong-willed Martha thinks there's more to the story - and that the paintings in the Sewells' gallery contain a hidden message detailing the truth.

Three complete stories in one collection! Includes The Black Pearl Mystery, The Cereal Box Mystery, and The Panther Mystery.

Christopher, Tom, and Sally are back in London at last. Everyone is relieved at their return - the plague has ended, and the king, pleased with their service, offers a surprising reward. But trouble has followed them home.... First, an old friend is ambushed and left for dead. Then an anonymous letter arrives at Blackthorn - a mysterious warning hidden inside a riddle and secret code. As Christopher and his friends begin to investigate, they soon discover they’ve stumbled upon a plot to kill the king...and anyone else who dares stand in the traitors’ way.

The year: 1983. The place: Ohio. The camp: Scary as heck. Camp Sweetwater is finally reopening, three decades after it mysteriously shut down. Campers Corryn Quinn and Tez Jones have each had more than enough of their regular lives - they’re so ready to take their summer at Sweetwater by storm. But before they can so much as toast one marshmallow, strange happenings start...happening. Can they survive the summer? Or will Camp Sweetwater shut down for good this time - with them inside?

Everyone in Bayport can't wait for the biggest event of the season: the premiere of G-Force - the newest ride by the world-renowned Piperato Brothers. Their creation is going to change the fortunes of Funsport, Bayport's small and recently run-down amusement park. Frank and Joe are friends with Daisy Rodriguez, the owner's daughter, and are first in line for the ride's launch. Purple lights click off, a huge whoosh emanates from the floor, loud music pulses....

Aaron Peterson feels like he's trapped in a recurring nightmare. After moving halfway across the world to flee his father's latest theme park failure, yet another disaster has occurred: A roller coaster car jumps the tracks at the Golden Apple Amusement Park, resulting in the death of his friend, Lucy Yi.

When an oil spill takes place off the coast of Connecticut, the Aldens are happy to volunteer to help clean up the animals affected, including a rare species of shore bird. But could more have been done to prevent the spill? As the Aldens take up the case, it leads them on an adventure to help other endangered animals around the world.

Three complete stories in one collection! Includes The Mystery of the Stolen Boxcar, The Mystery in the Cave, and The Mystery on the Train.

No matter how dangerous his adventures have been, Art has always been able to count on his best friend, Camille. Now that Camille is meeting her estranged father, Art wants to be there for her—which means going to London.

Of especially naughty children it is sometimes said, "They must have been raised by wolves." The Incorrigible children actually were. Turning sixteen is a bittersweet occasion for Miss Penelope Lumley: Her parents remain disappointingly absent, and her perfectly nice young playwright friend, Simon Harley-Dickinson, has not been heard from since he went to visit his ailing great-uncle Pudge in the old sailors' home in Brighton.

The Campground Kids begin their next journey in Yosemite National Park. Their trip gets turned upside down after learning that treasure has been hidden somewhere in the park—over one million in gold and precious gems. Once the kids discover that their long-lost great-uncle is involved, they insist on joining the hunt. As the family begins their adventure, they run into twin brothers, Brody and Brock, and their father. While Brody seems friendly to the crew, Brock and his menacing father are determined to locate the treasure and will resort to ANYTHING to find it!

Luke Garner has spent his entire life - all 12 years - in hiding. The government has outlawed families with more than two children. As the Garners' third child, Luke's very life is in danger. When Luke meets Jen, another "shadow child," he begins to question the government's policies.

Fourteen-year-old Nick has learned that the strange antiques in his attic bedroom were left there by the eccentric inventor Nikola Tesla. They are pieces of Tesla's Far Range Energy Emitter, capable of transmitting "free energy" to the globe. Some components of the contraption are still missing, but the objects themselves seem to be leading Nick and his friends to their current owners. However, members of the Accelerati, a menacing secret society of physicists, are on the hunt too, and their brazen leader, Dr. Alan Jorgenson, will stop at nothing to foil Nick and steal the objects.