Guppy doesn't get the chance to explain to Kate that... hell, that trip was hard at times. He's glad he was able to be there for the others, but the first time he killed someone not just a zombie is not exactly a moment he's proud of.

"Ask me later, I'll tell you anything you want to know." he says, then stops, watching the scene.

"That's Atton." he says quietly, recognising the older boy immediately from his time in the bar. "He's called Jaq at this age."

As Lyman approaches, he crouches down slightly to be on his level.

"Hey there, I'm a doctor, my name is Guppy. Is your brother okay?"