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

About the Book

From the author of One of Us Is Lying comes a brand new pulse-pounding thriller. When three old friends re-live an epic ditch day, it goes horribly-and deadly-wrong.

Ivy, Mateo, and Cal used to be close. Back in middle school they were best friends. So, when Cal pulls into campus late for class, and runs into Ivy and Mateo, it seems like the perfect opportunity to turn a bad day around. They'll ditch school and go into the city. Just the three of them, like old times. Why did they stop hanging out, anyway?

As soon as they pull out of the parking lot Cal knows why. Ivy's already freaking out about missing class, and heartthrob Mateo is asleep in the backseat, too cool to even pretend like he wants to be there. The truth is they have nothing in common anymore.

At least they don't until they run into the fourth student ditching school that day. Brian "Boney" Mahoney is supposed to be accepting his newly won office of class president. Which is why Ivy follows him into an empty building, only to walk into the middle of a murder scene. Cal, Ivy, and Mateo all know the person lying on the ground of that building, and now they need to come clean. They're all hiding something. And maybe their chance reconnection wasn't by chance after all.