Burt, Jake. Cleo Porter and the Body Electric.
Like everyone else, 12-year-old Cleo and her parents are sealed in an apartment without windows or doors. They never leave or get visitors. Their food is dropped off by drones. So they're safe from the disease that nearly wiped humans from the earth. Thus, when they receive a package clearly meant for someone else-- containing a substance critical for a stranger's survival--Cleo is stuck. J-SF BUR

Castle.  M.E.  Popular Clone.
Twelve-year-old Fisher Bas, a science-loving bully magnet, clones himself, only to discover that his double is infinitely cooler than himself. J-SF CAS

Christopher, John. When the Tripods Came.
Fourteen-year-old Laurie and his family attempt to flee England when the Tripods descend from outer space and begin brainwashing everyone with their hypnotic Caps. J-SF CHR

Fagan, Deva.  Circus Galacticus.
Trix's life in boarding school as an orphan charity case has been hard but when an alluring young Ringmaster invites her, a gymnast, to join Circus Galacticus she gains an entire universe of deadly enemies and potential friends, along with a chance to unravel secrets of her own past.

Gibbs, Stuart. Space Case: A Moon Base Alpha Novel.
While living on a moon base with fellow lunarnauts, Dashiell Gibson investigates the murder of one of the moon's most prominent doctors. J-SF GIB

Haddix, Margaret Peterson. Under their Skin.
Twelve-year-old twins Nick and Eryn investigate why their mother and new stepfather are keeping secrets, why they are forbidden to meet their stepsiblings, and most important, why their lives are in danger. J-SF HAD

Holm, Jennifer L.  The Fourteenth Goldfish.
Ellie's scientist grandfather has discovered a way to reverse aging, and consequently has turned into a teenager--which makes for complicated relationships when he moves in with Ellie and her mom, his daughter. J-SF HOL

Kuhlman, Evan.  Brother from a Box.
Sixth-grader Matt Rambeau finds out what it is like to have a brother when his father, a computer genius, creates a robot kid that goes to school with Matt, shares his feelings and ideas, plays, does chores, fights for his "life" when chased by spies, and becomes a part of the family. J-SF KUH

Lee, Yoon Ha. Dragon Pearl.
Min, a thirteen-year-old girl with fox-magic, stows away on a battle cruiser and impersonates a cadet in order to solve the mystery of what happened to her older brother in the Thousand World Space Forces. J-SF LEE

Mass, Wendy.  Pi in the Sky.
Joss, the seventh son of the Supreme Overlord of the Universe, must team up with a human girl to re-create Earth, when the planet is accidentally erased from existence. J-SF MAS

McDougall, Sophia. Mars Evacuees.
Twelve-year-old Alice Dare is one of 300 seven- to sixteen-year-olds evacuated to Mars to attend school and train as soldiers, safe from the war with Earth's invading aliens, the Morrors, but when all of the adults and robots mysteriously disappear, the youths must survive on their own. J-SF MCD

Nylund, Eric S.  The Resisters.
When twelve-year-olds Madison and Felix kidnap him, Ethan learns that the Earth has been taken over by aliens and that all the adults in the world are under mind control. J-SF NYL

Pearson, Ridley.  Kingdom Keepers.
13-year-old Finn and four others have been transformed into holograms to be guides for visitors to Disney World. When he is unexpectedly transported to the Magic Kingdom in his hologram form, an Imagineer, tells him that the teen guides must save the park from the scheming witch Maleficent and the Overtakers. J-SF PEA

Reese, Jenn.  Above World.
In a future of high technology and genetic modification the Coral Kampii, like legendary mermaids, live isolated from the Above World, but when the devices that allows them to breathe underwater start to fail, thirteen-year-old Aluna and her friend Hoku go to that forbidden place to find help. J-SF REE

Rex, Adam.  The True Meaning of Smekday.
When her mother is abducted by aliens on Christmas Eve (or "Smekday" Eve since the Boov invasion), 11 year-old Tip hops in the family car and heads south to find her and meets an alien Boov mechanic who agrees to help her and save the planet from disaster. J-SF REX

Richards, C.J. Robots Rule: The Junkyard Bot.
When George Gearing's personal robot Jackbot gets hit by a car, George rebuilds him into something amazing, only to have him disappear just as darkness threatens the town, leaving George and his new friend Anne Droid to find out what happened. J-SF RIC

Rodkey, Geoff. We're Not from Here.
After a year on Mars, a young boy and his family migrate to the planet Choom, but the inhabitants of Choom, the Zhuri, who look like giant mosquitoes, don't really like humans and it is up to the boy and his family to change their minds if they hope to survive. J-SF ROD