Twins Josh and Sophie team up with Nicolas Flamel, a 14th century alchemist, to retrieve an ancient Codex with the secret of immortality and stop the infamous John Dee from destroying humanity. The Secrets of Nicolas Flamel series will take you to Paris, London, San Francisco, and back, culminating in a battle for the world on Alcatraz Island.

The Impassable Wildwoods are guarded by a ghost bridge, but Prue and her best friend Curtis just walk right into the deep forest, in sesarch of her baby brother. Fabulous adventure with the Bandit King, blood-thirsty ivy, ancient Mystics, coyote swordsmen, birds, humans and animals of the Wood. A magical read!

Theo is only eleven, but she's an expert on ancient Egypt, and she knows all about curses, ancient magic, tombs, spells and a secret society out to destroy the world. From London to Cairo to the Valley of the Kings, Theo is in the thick of it.

In Ring of Fire, four kids unearth a secret hidden in Rome – an object older than the ancient Romans, and an underground temple. Another mysterious artifact takes the four to New York City, in search of the Star of Stone. Paris is next adventure, the "city of wind," and a mystery leads them to a ship ... and closer to the secret of Century.

Once a lowly squire (The Squire's Tale), Terence is now again in the service of King Arthur and dark forces are at work in England. Terence and his fellow knights come together to try to save Camelot. Action-packed, funny, and good for older kids.

Peter and Kate time travel to 18th century England, where they encounter Gideon Seymour, a gentleman thief, and the nefarious Tar Man. In book two, Kate and the Tar Man return to the present, while Peter remains trapped in the past; the trilogy ends with an exciting "out of time" conclusion in The Time Quake.

Missing children from history have been kidnapped from their own time period. Sent to the Tower of London in 1483, were the two prince Edward and Richard killed or did they vanish on the battlefield of Bosworth? Who could have sabotaged the lost colony of Roanoke, and what happened to Virginia Dare, the first English child born in the New World? Exciting mystery fantasy series.

When Jack is captured by the Northmen and taken away on their swift ships, it's only a beginning of a journey to the icy land of the trolls, along with Olaf, a great warrior, and Thorgil, a shield maiden. Shape shifters, the dangerous Mountain Queen, troll-bears, tellers of tales, this is a fabulous Viking adventure quest.

Adventures of Nate Fludd, budding explorer, to protect and care for mythological beasts. Accompanied by his intrepid aunt, Nate saves a phoenix in the Saudi Arabian desert, captures the dreaded poisonous basilisk in Africa, tames wyverns (winged dragons) in Wales, and helps a shimmering unicorn in the forests of France.

Three luminous fantasy adventures, in The Cabinet of Wonders, Petra Kronos searches in the secrets of the magical astronomical clock. Whisked to Elizabethan London, Petra, gypsies, and English spies search for a globe that charts the stars and navigates rifts in time. In the final book in the trilogy, Petra and her friends Neel and Tomik fight evil Prince Rodolfo with magic, Marvels and ghost hands.

Follow the Smithfork kids on a treasure hunt through New York; seven poems contain puzzles and clues to seven sights around the city. Find the map hidden behind the walls of Smithfork apartment, and solve the mystery – what happened to the Post family fortune?

Mystery adventures in the court of Queen Elizabeth I. Lady Grace, a maid of honor to the queen, solves the mysterious disappearance of her unwanted suitors, and takes on Sir Francis Drake.

In Stratford, talkative young Will Shakespeare uses his skills of observation and play acting to fin out who really murdered old farmer Speight, and keep Viola's identity secret.

Also, another history mystery, this one with young Ben Franklin: The Secret of the Sealed Room

Six girl detectives, each with a different talent, discover a lost maze of tunnels underneath New York City. Two original mystery adventures, smugglers and counterfeit goods, a plot to steal ancient art from the Metropolitan Museum, who can guess the identity of the mysterious Kiki Strike?

Imagine if Sherlock Holmes had a younger sister, and here she is, Enola Holmes, a spirited teenager, hot on the trail of Viscount Tewksbury (the missing Marquess), as well as her mother, who's also disappeared.

In medieval Italy, there's a conspiracy to overthrow the king, a high official has been killed, and Mangus the Magician has been arrested. His servant Fabrizio is the only thing that stands between the magician and burning at the stake.

Best friends Kari and Lucas are off to London and Amsterdam in an art mystery, then to highland Scotland in search of a kidnapped pianist, and Kenya on safari, tracking smugglers stealing prehistoric treasures from Simba Hill.

There's a mystery brewing when Suzanna comes to Boston to visit her grandmother. Who's stealing famous artworks all over town, and is someone in her family involved? Suzanna and cousin Will are way ahead of the local police investigation.

Adventure and Russian spies in postwar London. Two kids, Janie and Benjamin, discover their Latin teacher is a double agent, and Benjamin's father, the apothecary, is working on a secret project.

Emmajin, the granddaughter of Kublai Khan, aims to become a warrior in the Mongol army. But when she meets Marco Polo in the gardens of Xanadu, another world opens up. Together they travel to western China on a secret mission and find themselves facing a fierce army mounted on elephants. A good teen read.

It's 1862, ride with P.K. Pinkerton to Virginia City, a wild west town full of gamblers, gold miners, desperados, and the writer Sam Clemens (Mark Twain). On the run from two outlaws, can P.K. stay alive and register his deed to a silver mine?

Based on a true story, Beryl grows up on a ranch in British East Africa (Kenya), hunting lions with the Nandi tribal warriors, training horses, and becoming one of the first women pilots, flying alone at night across the Atlantic from England to North America.

Flat Stanley's Worldwide Adventures
Sara Pennypacker, Jeff Brown

Flat Stanley can fold up and go anywhere on earth, and he's out for adventure – stopping tomb robbers in Egypt, eluding ninjas in Japan, dogsledding in Canada, tracking spies in Mexico, on safari in Africa, hopping with kangaroos in Australia.

Go on a round the world trip in a steam-powered motorcar with Harry (son of Phileas Fogg), Johnny (mechanic), Charles (stick-in-the-mud), Elizabeth (headstrong journalist).  Adventures galore, outrunning a prairie fire in America, typhoons off Japan, crossing Siberia, capture by outlaws, racing to meet the deadline.

In a worldwide adventure of 10 books, travel with Dan and Amy Cahill starting with the catacombs of Paris, then on to Vienna, Venice, Egypt, Russia, Australia, Indonesia, South Africa, Beijing, the Caribbean, and London, as they solve puzzles, survive assassination attempts, outwit scheming family members, to find the secret that changed history.

The series continues with Vespers Rising, and Cahills vs Vespers.

Epic adventures of Nick and his sister Kate - a sea chest with a secret inside, storms at sea, 18th century pirates, Spanish galleons, bombing raids on Nazi airfields, Revolutionary War battles and spies. Classic adventures and fun for everyone in the family!

Ten stories of ghosts, priceless lost treasure, a magical wish machine, clever gold thief, Somali pirates, smugglers, venomous snakes, monster hunters, and more. "Guaranteed to thill, chill, and have you so far on the edge of your seat you're actually on someone else's."

In this beginning reader series, Annie and Jack are whirled back in time to Italy, Ireland, Japan, France, Egypt, Austria, China, England, India, and more far flung destinations.