Syrlya's going to assume that hypothesis is right. He leans back a little, hand to his chin as he regards it.

"No, not now--you can close it, before they have reason to notice." Mentally he reviews what he remembers to be in there, besides eggs. Nothing that would immediately break them out, but--there's still equipment they could use when the time is right.

"But it is good to know it works, even that much." He glances aside. "Be careful not to drop in rank yourself, Childermass. I don't know what's happened to Lambert, but we cannot lose what little mobility we have before we can act."