The What Do We Know About? series explores the mysterious, the unknown, and the unexplained. Was the Giant’s Causeway really built by giants? Learn all about the mystery surrounding one of the United Kingdom’s greatest natural wonders.The Giant's Causeway is a spectacular geological formation in Northern Ireland that is a popular tourist destination and UNESCO World Heritage Site. According to Irish folklore, in the third century, a giant named Finn McCool was chal...

A poor labor class lives underground. The wealthy elite live in a gleaming city above them. This is Metropolis, the sci-fi classic that emerged after its writer collaborated on the screenplay for the 1927 film by the same name. As tensions between the two classes come to a head, a pair of young people from different worlds fall in love. Impoverished and compassionate Maria comes together with existential Freder, the wealthy son of one of the above-ground leaders, in a romance that...

THE FINAL BOOK IN THE SAPPHIRE SAGA TRILOGYThe O’Ryan family’s interstellar adventure reaches its thrilling conclusion. Join Slugger, Flint, Scout, and their father as they embark on their final and most dangerous quest―a journey to the center of the universe.For Slugger, Flint, and Scout, the future has never seemed so uncertain. Their father has been poisoned and is clinging to life. Slugger is marooned on a strange planet. Flint is racin...

60th Anniversary Edition. A strange sea monster suddenly appears on the lake… a fortune is unearthed from an old cannon…a valuable dinosaur egg is stolen. Who’s responsible?Those seven junior geniuses — and their wild ideas!"Every time you Mad Scientists get mixed up in something, it means trouble!"cries the mayor of Mammoth Falls.Watch out as the seven junior geniuses of the Mad Scientists’ Club turn the town upside down.

When a brilliant young professor mysteriously disappears, Frank and Joe Hardy find themselves thrown into one of their most thrilling cases yet. From the lively halls of Kenworthy College to the eerie depths of the Honeycomb Caves, the brothers follow a trail of cryptic clues that begins with a strange message scrawled on an exam paper. But nothing could prepare them for the dangers that lie ahead.As they explore the rugged caverns along the windswept coastline, the Hardy boys stum...

At these supernatural academies, romance is enchanting and friendship is magical.Become immersed in a world where magic is around every corner. In this short story collection, witches battle ghosts, fae hunt monsters, and elementals discover mythical creatures at magical schools where danger lurks in the shadows. Break out of a supernatural prison and fall in love, all while seeking adventure at paranormal universities in tales that are both funny and full of heart...

Slugger, Flint, and Scout are always out exploring the mountains of New Mexico near their home. When a cherry-picking expedition puts them in the path of a peculiar pooch in peril, the three siblings have no idea what unstoppable calamity has just been set in motion.The dog they call Robin Hood isn’t what he appears to be. And neither are the O’Ryan kids.Together, the three unlikely heroes and their trusty “canine” companion must journey the cosmos to snatch Earth back from...

"The Secret of the Old Mill," the third book in the Hardy Boys series by Franklin W. Dixon, follows Frank and Joe Hardy as they investigate a mysterious counterfeiting operation in their hometown of Bayport. When they receive a strange, counterfeit bill at the local post office, the brothers suspect that something sinister is afoot. Their sleuthing leads them to an old, abandoned mill on the outskirts of town, where they uncover evidence of a secret criminal operation. As they dig deeper, ...

Step into the frosty adventure of The Mystery of Cabin Island, where Frank and Joe Hardy, along with their loyal friend Chet Morton, embark on an unforgettable journey during their Christmas holiday break. It all begins with a thrilling ride across the frozen surface of Barmet Bay in their homemade iceboat, but their peaceful plans quickly take a mysterious turn. When the boys visit the remote and snow-covered Cabin Island, a strange encounter with a mysterious stranger leaves the...

“The Tower Treasure,” the first book in the Hardy Boys series written by Franklin W. Dixon, introduces readers to the young sleuths Frank and Joe Hardy. The story is set in the fictional town of Bayport, where the brothers, sons of the famous detective Fenton Hardy, inherit their father’s knack for solving mysteries. When their friend Chet Morton’s yellow jalopy is stolen, the boys embark on an adventure that leads them to uncover a major theft involving a missing fortune hidden in the Tow...

BOOK TWO IN THE SAPPHIRE SAGA TRILOGYThree space-dwelling siblings learn a shocking secret and embark on a treacherous, interplanetary mission to save an alien civilization from imminent peril.After wielding the unparalleled power of the Sapphire Sword to save Earth, Slugger, Flint, and Scout, spend their days cruising the cosmos and exploring the infinite possibilities aboard the Nautilus, their all-galaxy-class spaceship. Life is...

An Amazon Best Book of the MonthAll Charlie Tickler wants is for his parents to listen.Charlie's parents have left him (again). This time they are off to South Africa to help giant golden moles. And Charlie? He's been dumped with his TV-obsessed grandparents. Lonely and curious, Charlie heads into the village of Castle-on-the-Hudson, where a frightened old woman gives him a desperate message—in sign language. When she suddenly disappears, Charlie i...