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When Ellie, who loves to invent and build things, decides to build a doghouse as a gift, she needs to get past the boys-against-the-girls neighborhood feud and ask for help.

"On a very hot day, Min, a budding engineer, builds a machine that draws water from a well and into a swimming pool"-- Provided by publisher.

After fourteen-year-old Lacey Chu repairs a highly advanced smartphone/robotic pet companion, or baku, called Jinx, the baku gets her into her dream school, Profectus, where she is exposed to dangerous secrets.

"In a world where people are implanted with technology to recode their DNA, gene-hacking genius Cat must decrypt her late father's message concealing a vaccine to a horrifying plague"-- Provided by publisher.

Profiles the systems that work together to keep urban areas running safely, discussing how cities have evolved since the first riverside settlements while outlining projects that explain facts about transportation, water systems, and architecture.

"Twelve-year-old Ada is a Chimera, one of a number of children born with human and animal DNA thanks to a genetic experiment gone wrong. When she is shipped off to a quarantined school for other kids like herself, she senses that the facility is keeping a secret, which, if discovered, could upend everything the world knows about how Chimeras came into being"-- Provided by publisher.

Aluna and Hoku, Kampii from the City of Shifting Tides, and their friends, Equian Dash and winged Aviar Calli, are determined to stop a war. The maniacal ex-scientist Karl Strand is planning to conquer the world with his enormous army of tech-enhanced soldiers-- unless the four friends can get to Strand first. Aluna's plan is dangerous: pose as Upgraders and infiltrate the army. But the enemy isn't what they expected and the strategy begins to crumble....

The desert is no place for ocean-dwelling Kampii like Aluna and Hoku, especially now that Aluna has secretly started growing her tail.

When Kit's pageant rival Melody loses her rabbit, Ellie believes she can build a contraption to catch him, but she begins to doubt herself when Melody insists that a pageant is no place for messy engineering experiments.

Eleven-year-old Elara from the planet "Nowhere" begins school at the Academy of Terraforming Arts, where she befriends Clare, a mute intergalactic sponge, and learns how to farm in space without blowing up planets.