science fiction

"Charlie and August, the two cats that control the mechanical superhero dog, Sparks, are keeping the city safe. But when a second, evil Sparks shows up and starts causing trouble around town, everybody blames the real Sparks. Determined to prove that Sparks is still the hero everyone can count on, Charlie and August set out to uncover the shocking truth about who is responsible for all the chaos"--Provided by publisher.

In the epic conclusion to the 5 Worlds series, the final battle looms as Oona, Jax, and An Tzu travel to the treacherous world of Grimbo (E)! There, Oona must light the last beacon to save the 5 Worlds, but first she has to find it! When Jax saves an old friend, Oona is given a clue to the green beacon's location. Unfortunately, the journey to lighting it on this strange, watery planet is the most dangerous yet. Meanwhile, Stan Moon has one more trick up his sleeve as his frightening powers and mysterious connection to An Tzu continue to grow. How can Oona ever hope to beat him? Can she count on her friends or will a terrible betrayal mean the 5 Worlds will be lost to evil forever?.

Oona Lee arrives on Salassandra determined to light the yellow beacon and continue her quest to save the Five Worlds from the evil Mimic's influence. But the beacon is encased in amber! An ancient clue says that Oona and her friends must seek out the Amber Anthem to succeed. Meanwhile, Stan Moon sends an evil Jax robot to assassinate Oona and hunts down An Tzu himself. Turns out, as An Tzu fades away from his Vanishing Illness, he's becoming someone else--someone who could tip the scales in the battle for the Five Worlds!.

Oona, Jax Amboy, and An Tzu must light the beacon on Moon Yatta and stop the evil force that threatens to rule the 5 worlds.

Sisters Jessa and Oona, and new friend Ram Sam Sam, try to stop the Cobalt Prince from Toki, who orders a strike on Mon Domani, starting a new war between the worlds.

So far the AstroNuts have failed to find a suitable planet, but NNASA has come up with a new plan: send the the four animal astronauts back through time on Earth where they are to contact early homo sapiens and somehow set them on a path to a sustainable future--trouble is, humans seem inferior to many of the other species (especially the wolves), so the AstroNuts come up with a Survival of the Fittest Olympics, hoping that with a little help the humans will prevail.

"Sera the soldier and Zahn the scientist are teenagers on opposite sides of the same extinction-level event who get drawn deeper into conspiracies that could doom them and their home planet Krypton"--OCLC.

"Eleven-year-old Helga Sharp is found unconscious in a drifting rowboat near the coast of Utley Island. Utley, as Helga finds out when she awakens in the hospital, is forbidden territory: it's a prison island to which the Mainland has exiled troublesome mad scientists for generations. The truth is, it's no accident that Helga landed here. While working on her projects in secret, Helga made radio contact with Erasmus Lope, a mad genius who everyone thought had died in a lab experiment gone spectacularly wrong. But Lope is alive, and Helga is on a mission to rescue him from the prison island"--Provided by publisher.

Fourteen-year-old Kaya, of the undersea, high-tech world of Atlantis, and twelve-year-old Lewis, of the climate-threatened world above water, embark on a dangerous adventure when he enters her realm.

As a new recruit of the Dora Milaje on her very first mission outside of Wakanda, Okoye is sent to Brownsville, a neighborhood of Brooklyn that's experiencing extreme gentrification. Spending time with the other young people of Brownsville, Okoye soon learns about the plans of Stella Adams, a wealthy, powerful real estate mogul who is behind most of the gentrification in the neighborhood, but she is shocked to discover Adams's hand in a more sinister plot: one involving a drug called PyroBliss that seems to be consuming Brownsville. While her captain, Aneka, and her King, T'chaka, refuse to take action, Okoye is conflicted on what to do. She wants to help her new friends but doesn't want to jeopardize their diplomatic mission, and Okoye is forced to make decision between her duty to her king and country and helping those that need her the most.