The rules, yes. Since he'd obviously be flouting them if he made some sort of annuncement and Drift would be anything but unharmed...

[Which is not good. Not that Tarn making an announcement would be good either, but at least they'd know.]

I'll have a look, see if I can find some sort of trace of him... I'll meet you in the corridor that leads to the washrack and pools in a cycle or so?

[Then she realises that, ahem, they might not think of the same thing when it comes to "cycle" and static briefly fuzzes her vocaliser.]

Around two hours, I mean.