Twins Ben and Zoe are sent to Kenya to expose and stop the hunters who are killing elephants in the nature reserve for sport.

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.

"Ten-year-old twins Mia and Maddie and their little sister Lulu head to London for the first time to watch mom, famous singer Gloria Glimmer, perform. But on a day trip to the National Gallery, Maddie witnesses what she believes to be an art theft and takes her sisters and their beloved and wacky nanny Miss Julia on a wild and crazy adventure as they follow the supposed thief to his lair"--

Twin Dani and Dorian Wytte have been through everything together since leaving home. But with their parents out for blood, their brother Damien crowned King of Witches, and normal people suspicious of magic, they aren't sure whose side they're on... or if anyone's on their side. Searching for the lost Prince William with their group of friends, grapple with their parents' cruel legacy, the power within themselves, and one Wytte is lost forever, they...

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.

Reeling from three years of anti-magic rule--and three years disconnected from twin witches Dani and Dorian--Princess Monica, Nico, Damien, and Prince William know that it is now their responsibility to save the kingdom, and their friends, before darkness prevails. Determined to uncover the circumstances of Dorian's disappearance and rescue reigning Queen of Witches Dani from her mysterious curse, the group comes together for one final epic adventure....

As twins Ava and Mira have inspired a rebellion against the one-child policy and Governor Roth's strict enforcement of the rule, the sisters and two other allies head back to Dallas despite the dangers.

"It was 1798 when the Morningstarr twins arrived in New York with a vision for a magnificent city: towering skyscrapers, dazzling machines, and winding train lines, all running on technology no one had ever seen before. Fifty-seven years later, the enigmatic architects disappeared, leaving behind for the people of New York the Old York Cipher -- a puzzle laid into the shining city they constructed, at the end of which was promised a treasure beyond...

On the last day of second grade, twins Finn and Molly discover a magical camper in their driveway that takes them from Ohio to Colorado, where they must save a famous cow.

For twins Carlos and Carmen, Uncle Alex's big green surprise turns into the best backyard camping experience ever.