Wasatch County Library

"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"--

Twins Polly and Sarah Stealthy-McWealthy are so rich that they never have to share anything with each other, but the time comes when they discover that they are lonely, and that they can have more fun if they share their good fortune with others.

The second Fowl Twins adventure, a spinoff of the blockbuster Artemis Fowl series, starts with a bang—literally.
Artemis's little brothers Myles and Beckett borrow the Fowl jet without permission, and it ends up as a fireball over Florida. The twins plus their fairy minder, the pixie-elf hybrid Lazuli Heitz, are lucky to escape with their lives.
The Fowl parents and fairy police force decide that enough is enough and the twins are placed

...

"They live in the shadows, Jack and Jill, feuding twins who can never stop running. From earliest memory they've been taught to hide, to hunt, to survive. Their prowess is outdone only by Clare, who has always been mentor first and mother second. She trained them in the art of espionage, tested their skills in weaponry, surveillance, and sabotage, and sharpened their minds with nerve-wracking psychological games. As they grew older they came to question...

In order to end the Masked Man's literary army, the twins and their friends must enter Conner's short stories, where they find allies in unexpected places.

Andi Buckner and her twin brother, Bolden, have had enough of the rough streets of Detroit. When they can no longer bear the drugs and abuse within their home, the twins make their escape: Bolden to the military, and Andy to wherever the wind takes her. Andi eventually finding herself in Spring Hollow, Montana, taken in by a kind old man, Louis "Gramps" Granger, a retired cop. Andi soon finds a peace she has never known as she roots herself in the...

In a world that is rapidly descending into chaos, Frey and Rafi are twin sisters, but few people know of Frey's existence, because she has been raised to be her sister's body double and lethal bodyguard, while Rafi has been raised to further the family's political power--but when their father sends Frey in her sister's place as collateral in a tricky deal, Col, the son of a rival leader, gets close enough to begin to suspect something, and Frey must...

Life seems to be back to normal for "newly twinned" sisters Miri and Molly until their magical house sends them on a new time-traveling adventure to the Civil War, where they must risk everything to save two unusual soldiers and come to terms with the emotional truth about Molly's past.

When the unlucky magical twin Eff joins an expedition to map the Far West, she endures a long prairie winter and encounters with previously unknown creatures before realizing the importance of ending a magical flood.