Right, Martin'd been just a little behind him learning who that was. Honestly, the time since then feels more like eighteen years to Jon, especially lately. He shakes his head, with a brief grimace. "He'd been hiding in the tunnels. Since long before Gertrude died, actually. Had some of his books with him - one let him reshape the tunnels, one hid him from us. He saved me from-" Oof, not long enough that the thought doesn't still bite, though. "Not-Sasha. You saw it, right?"