[Diarmuid nods in agreement with Waver's words before adding a few of his own.]

There was a five hour countdown timer in the room where we were locked up. When it hit zero, all the power failed. If that was our actual timer hitting zero...

[He trails off with a shrug since who knows what will be waiting for them when they get back.]

If this is Zo's doing, I wonder why he waited so long unless the power had to fail in order to give him the chance to open the portals for us without Ruana interfering.