Dr. One-Zero has added a new class to Stately Academy's curriculum. But in "Advanced Chemistry," they only teach one lesson: how to make Green Pop! While their classmates are manufacturing this dangerous soda, the Coders uncover a clue that may lead them to Hopper's missing dad. Is it time to use Professor Bee's most powerful weapon: the Turtle of Light?

From graphic novel superstar (and former computer-programming teacher) Gene Luen Yang, comes Robots & Repeats, the fourth volume of Secret Coders. This wildly entertaining series combines logic puzzles and basic coding instruction with a page-turning mystery plot!

About the Author

Gene Luen Yang writes, and sometimes draws, comic books and graphic novels. As the Library of Congress’s fifth National Ambassador for Young People’s Literature, he advocates for the importance of reading, especially reading diversely. His graphic novel American Born Chinese, a National Book Award finalist and Printz Award winner, has been adapted into a streaming series on Disney+. His two-volume graphic novel Boxers & Saints won the LA Times Book Prize and was a National Book Award finalist. His nonfiction graphic novel Dragon Hoops received an Eisner Award and a Printz honor. His other comics works include Secret Coders (with Mike Holmes), The Shadow Hero (with Sonny Liew), as well as Superman Smashes the Klan and the Avatar: The Last Airbender series (both with Gurihiru). In 2016, he was named a MacArthur Foundation Fellow.

Mike Holmes’s comics can be seen in Bravest Warriors, Adventure Time, True Story, This American Drive, and Shenanigans.

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