"When the coding club finds that their app has a malicious user, Morgan, Zoey, and Daniel code an update to contend with a mischievous AI llama that's guiding a not-so-popular kid named Marcus to cause chaos in the school. Annoying little siblings, chaotic pranks, and more abound as they race to repair the glitchy app--and their own friendships--in their school before the damage is irreversible"--
juvenile
Deirdre Langeland ; illustrated by Sarah Mai.
Chiefly illustrations.
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