[ Tim grins back and shrugs. Random life-or-death situations are a side effect, but seeing an old friend is worth it, in his opinion. She looks - the same, really, but that doesn't shock him. Bart is at least a year too young. This is why he hates time travel. ]

We could always put a charge on one of the walls if the water gets too deep.

[ Said with all the calmness of someone who has explosives, a rebreather, and a grappling hook (to keep them from being swept out with the water) on his person. ]

I'm checking the books for mentions of whatever spell is effecting the windows. I want to know if it's the windows or some sort of forcefield that covers the room before we start doing plastique renovations.