Rohan leads the effort to rescue Thisbe from the Revinir, without knowing if she will prove loyal to Artimé or not.

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.

"Cash, Fitch, and Bird Thomas are three siblings in seventh grade together in Park, Delaware. In 1986, as the country waits expectantly for the launch of the Space Shuttle Challenger, they each struggle with their own personal anxieties. Cash, who loves basketball but has a newly broken wrist, is in danger of failing seventh grade for the second time. Fitch spends every afternoon playing Major Havoc at the arcade on Main and wrestles with an explosive...

Twins Alexander and Theo, their older sister Wil, and their friend Edgar find themselves at the mysterious Camp Creek where they meet other families whose parents are missing. Although things seem normal, the twins are sure something strange is going on and they must save themselves before they are stuck there forever.

After their father dies unexpectedly in prison, twins Alex and Olly's relationship becomes fractured as they cope with their loss very differently, and to make matters worse, Olly is hiding the truth that Tyler, who recently arrived at their lakeside town for the summer, is actually their half-brother.

Eleven-year-old twins Miles and Beckett Fowl enjoy adventure and mayhem while helping a troll escape nefarious forces that want his magic.-- One week after their eleventh birthday, the Fowl twins-- scientist Myles, and Beckett, the force of nature-- befriend a troll who has clawed his way through the earth's crust to the surface. Unfortunately the troll is being chased by a nefarious nobleman and an interrogating nun, who both need the magical creature...

"Twins Carys and Andreus were never destined to rule Eden. With their older brother next in line to inherit the throne, the future of the kingdom was secure. But appearances--and rivals--can be deceiving. When Eden's king and crown prince are killed by assassins, Eden desperately needs a monarch, but the line of succession is no longer clear. With a ruling council scheming to gain power, Carys and Andreus are faced with only one option--to take part...

In the near future, the conjoined Armstrong twins, under the guise of the Armstrong Fancy Gifts Corporation, plot to create their own version of utopia using nanobots, while a guerilla group known as BZRK develops a DNA-based biot that can stop bots, but at risk of the host's brain.

Tippi and Grace. Grace and Tippi. For them, it's normal to step into the same skirt. To hook their arms around each other for balance. To fall asleep listening to the other breathing. To share. And to keep some things private. The two sixteen-year-old girls have two heads, two hearts, and each has two arms, but at the belly, they join. And they are happy, never wanting to risk the dangerous separation surgery. But the girls' body is beginning to fight...

When a Bandit King comes to take the magic that Ned's mother, a witch, is meant to protect, the stuttering, weak boy villagers think should have drowned rather than his twin summons the strength to protect his family and community, while in the woods, the bandit's daughter puzzles over a mystery that ties her to Ned.