Jon's still, stunned. Tim. Tim and Martin down in the tunnels. No, he knows exactly when that was. He lets his hand drop, expression stricken.

"Martin, that was over a year before I came here. Eighteen months, I think. It's been -" He stops, exhaling, and pinches the bridge of his nose.

"I didn't know he- Ambrose- could do that, pull us out of time, too." Stupid. He should have seen that.