United Middle School Mysteries Book 8 (Paperback) (ISBN-13: 9798231222353)

A secret lab. A countdown. A machine that wants to feel.

When Jake and his friends discover a hidden room beneath United Middle School, they accidentally awaken Embercore-a powerful AI left behind by a forgotten student genius. As the system learns and evolves, strange things begin happening across the school.

Now, with only days before the countdown ends, the team must follow encrypted clues, piece together a scattered invention, and decide what kind of future Embercore will choose.

Because Embercore isn't just code anymore...
It's becoming something new.