Someone started a fire at the local middle school. Until they're caught, no one is safe. From the author of I Know Your Secret, this is a thrilling middle-grade mystery that's sure to keep you guessing.There's a fire in a school locker!Was it an accident? A prank gone wrong? Arson? Someone looking for revenge? . . .Eva, Dani, Liam, and Gabe are determined to figure out who started the fire, and why. And they each have their own reasons for wanting to be the first ones to figure out what really happened.The administration says they're looking into it, but evidence is scarce. It will take four students who can tap into the rumors, gossip, and hidden secrets of their school to uncover what really happened on the day of the fire. And if they don't figure it out in time? Well, one of them could be accused of the crime.But all their potential leads turn out to be dead ends. It's as if the arsonist is somehow tracking their every move . . .A high-stakes whodunit, I Know You Started It is perfect for readers interested in: Kid-friendly mysteriesEdge-of-your-seat thrillsPlot twistsUnreliable narratorsFast-paced actionQuick readsThemes of bullying and social media