Against the will of their grandmother, twins Alex and Conner must find their own way into the Land of Stories to rescue their mother and save the fairy tale world from the greatest threat it has ever faced--the return of the Enchantress who cursed Sleeping Beauty.

Fourteen-year-old twin basketball stars Josh and Jordan wrestle with highs and lows on and off the court as their father ignores his declining health.

While armies of the Shadowrealms gather and Machiavelli goes to Alcatraz to kill Perenelle Flamel, fifteen-year-old twins Sophie and Josh Newman accompany the Alchemist to England to find someone who can teach them Water Magic.

In a future world where teenagers are taken, imprisoned, and forced to fight for their survival, well-behaved Cassie will do whatever it takes to save her rebellious twin sister from Death Row.

Feeling cast off when her twin sister outgrows their shared love for a favorite fictional character, Cath, a dedicated fan-fiction writer, struggles to survive on her own in her first year of college while avoiding a surly roommate, bonding with a handsome classmate who only wants to talk about words, and worrying about her fragile father.

Jimmy and Janet, four-year-old twins, share the adventures of digging a hole to China, finding a worthy recipient for their dog biscuits, shopping for new shoes, and getting real beds to replace their cribs.

Twelve-year-old twins Ashley and Ryan are tested to the extreme when faced with a powerful avalanche while skiing in Wyoming's Grand Teton mountains. Includes survival tips from the National Avalanche Center and U.S. Forest Service.

Everything Aaron has worked so hard to build in Quill has crumbled. Fallen from the height of power and influence and left for dead in a foreign place, Aaron has lost everything, and now he must humbly beg for food from those who saved his life. In Artime, Alex chooses his people over his brother and abandons his search for Aaron, closing the door on that relationship forever. The Artimeans need his focus now more than ever as they face the terrifying...

Divided by their society into Wanted and Unwanted at thirteen, estranged twin brothers Aaron and Alex have both run into trouble--as mage of Artime, Alex must defend the island from attack, while Aaron continues to scheme to take over the islands and get rid of the Unwanteds altogether.

Fifteen-year-old Josh has chosen to side neither with his twin sister Sophie nor with the Alchemyst, Nicholas Flamel, but rather to fight alongside Dr. John Dee and the mysterious Virginia Dare, while the immortal Machiavelli and Billy the Kid follow the Elders' plans to set loose the monsters of Alcatraz on San Francisco and trigger the end of the humani race.