Secret Coders, Book 5: Potions and Parameters


From graphic novel superstar (and former computer programming teacher) and New York Times bestselling author Gene Luen Yang, Secret Coders: Potions & Parameters is the fifth volume in a wildly entertaining series that combines logic puzzles and basic coding instruction with a page-turning mystery plot!

Dr. One-Zero won't stop until the whole town―no, the whole world―embraces the "true happiness” found in his poisonous potion, Green Pop. And now that he has the Turtle of Light, he’s virtually unstoppable.

There's one weapon that can defeat him: another Turtle of Light. Unfortunately, they can only be found in another dimension! To open a portal to this new world, Hopper, Eni, and Josh's coding skills will be put to the test.--from the publisher

112 pages                   978-1626726079               Ages 8-12


Hopper, Eni, and Josh continue their efforts to take down Dr. One-Zero before he can control the entire town. And that is just what he plans to do with his "green pop." He has the students creating gallons of the stuff during their chemistry classes, and readers already know from previous books that drinking the soda can hypnotize people into what the villain calls "true happiness." How does he plan to use this stockpile to take over everyone in town?

When the Coders use the Turtle of Light, the most powerful programming tool that Professor Bee has, they manage to find Hopper's missing father and some of the professor's other students. But while they are preoccupied, One-Zero gets his hands on the Turtle. With Eni's parents threatening to transfer him to another school (because Hopper and Josh are bad influences), Hopper's mother worried about her safety and distracted by the health of her newly rescued husband, can the Coders stay together long enough to put an end to One-Zero and his plans for good?

Like the other Secret Coders books, Potions and Parameters has plenty of explanations of coding concepts as Professor Bee teaches the Coders the skills they need to fight the villain. And there are pauses so that readers can work out the coding challenges themselves. For middle graders who enjoy graphic novels and have an interest in robots and coding, this is the perfect series.

Recommended by: Suzanne Costner, Librarian, Tennessee USA

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