It's been a long time since Kate lied to Magnus. Right this minute, she's looking her straight in the eye. She could lie cold and protect them. She doesn't owe Druitt anything. He killed innocent Abnormals in her home. On her watch.

She lifts her chin and tells the truth because Will and Magnus trust her. "Yes and no. There was an energy parasite trapped in him. He said that he felt like his old self when he was free of it. You told him that he'd been controlling it, limiting the damage it could do. He took it back on himself." That had been the only time Kate had ever considered there might be a decent person in there.

"Maybe that thing was what made him violent. But he picked who he killed. Even without it..." Kate shakes her head. "You weren't sure. Will definitely wasn't sure. I don't trust him."