You'll Be the Death of Me book by Karen M. McManus

Three former friends ditch school for old time's sake, with horrible and deadly consequences. Ivy, Mateo, and Cal used to be close/best friends back in middle school. So, when Cal pulls into campus late for class, and runs into Ivy and Mateo, they decide to ditch school. Just like old times. But they're not the only ones skipping school that day. When the trio spot classmate Brian 'Boney' Mahoney acting suspiciously downtown they follow him into an empty building, and walk straight into a murder scene. Brian's not the only one keeping secrets, and when their day of freedom turns deadly it's only a matter of time before the truth comes out. Published By Penguin Books Limited on 2021-11-30