Ah, okay. I misunderstood. So it looks like holding her breath shouldn't be a problem at all, but the swimming looks like it could be brutal. Those rules aren't really very clear on whether you take the damage after swimming [Body + (Swimming + Strength roll)] turns period, or only if you're trying to move faster than the normal rate.<br/><br/>I already closed my 4th edition book and put it away, and I don't feel like grabbing it again, but I had the 4A copy open to check if it was any clearer, and it at least mentions that if the characters are jogging at their default movement rate, rather than running, the base period should be (Body + hits) x 2 minutes. I think the regular 4th edition book mentioned something similar. So maybe that would translate to the default swimming rate versus the faster swimming rate? It would be nice if the game specifically mentioned one way or the other.<br/><br/>At any rate, swimming, especially with spirit assistance, is probably the better way to go, rather than summoning a spirit, casting levitate, and casting invisibility.