A tyrannical government …
A cryptic letter …
A devious hacker …

In a world where the government’s CORE systems see and track everyone, seventeen-year-old hacker Seth Alvarez is determined to save his sister from being placed in a reeducation facility. Armed with a cryptic letter, Seth embarks on a search for the valuable incognito devices—cyber master keys that can set his sister free. But with only three weeks remaining, he finds himself wedged between two powerful forces who will stop at nothing to get the devices first.

Book 1 of the CORE Series.