When twelve-year-old twins Ben and Fee MacTavish, along with their schoolmates, head to a small island in the Caribbean aboard the School Ship Tobermory, they learn extraordinary details about their captain's past and come face to face with modern-day pirates.

"Maureen and Francine Carter are twins and best friends. They participate in the same clubs, enjoy the same foods, and are partners on all their school projects. But just before the girls start sixth grade, Francine becomes Fran -- a girl who wants to join the chorus, run for class president, and dress in fashionable outfits that set her apart from Maureen. A girl who seems happy to share only two classes with her sister! Maureen and Francine are...

Living with their Ojibwe family on the Great Plains of Dakota Territory in 1866, twin brothers Makoons and Chickadee must learn to become buffalo hunters, but Makoons has a vision that foretells great challenges that his family may not be able to overcome.

Dee returns to her small hometown in New Jersey to see if she can help her father and the local police find her missing twin sister Beth, who was a leader in fighting the threat of a pipeline gutting the pinelands, but only finds more mysterious questions while disocovering signs of the supernatural in the surrounding woods.

Thirteen-year-old Baylor Bosco does not like ghosts, but as a medium he sees them--including his twin sister Kristina--everywhere but Kristina disappears after a strange ghost shows up and Baylor must try to find her on his own.

Twins Raquel and Lucinda Mendoza used to be inseparable, but since their parents divorced Raquel has become bossy and obsessive, while Lucinda has immersed herself in her ice skating lessons, and the pandemic and its enforced isolation has only made things worse; but then they are sent to their father's ranch in central California and while Raquel thinks that this is a chance to get their parents back together by driving his girlfriend away, Lucinda...

"Twelve-year-old twins Bickford and Rebecca Kidd and their two older siblings travel to Africa to track down priceless artifacts that will keep the family's treasure hunting business afloat long enough to rescue their kidnapped mother--and possibly find their missing father"--

While his father works two jobs, seventh-grader Efr©♭n Nava must take care of his twin siblings, kindergartners Max and Mia, after their mother is deported to Mexico. Includes glossary of Spanish words.

"When two siblings attend an unusual school, aboard a ship, they make new friends, learn about all things nautical, and become involved in a mystery they feel compelled to help solve"--

"After a terrible political coup usurps their noble house, Hawke and Grayson flee to stay alive and assume new identities, Hanna and Grayce. Desperation and chance lead them to the Communion of Blue, an order of magical women who spin the threads of reality to their will. As the twins learn more about the Communion, and themselves, they begin to hatch a plan to avenge their family and retake their royal home. While Hawke wants to return to his old...