Aria kicked her legs hard to keep with Kass, approaching the underwater woman. They wound find that, although it was more difficult to enunciate clearly underwater, the sound carried well. The woman seemed to understand, and she gradually began to drift forward, using her wings as much as her arms and legs, almost like fins.<br/><br/>"Very well," she called out, voice echoing and neutral, "An audience you may have, although I cannot promise that you will find whatever answers or deals you come seeking to ask." She gestured, turning about and beginning to swim towards the left of the two narrower caverns - Kass would notice that, the light was already dim this deep underwater, and as they swam 'underground' and out from beneath the sun, she would likely find herself in more or less total darkness as they went deeper.<br/><br/>The winged woman called over her shoulder, her manner mostly indifferent, "What answers or deals<em>do</em>you seek to ask of, and whence came you understand that a dragon lived here?"<br/><br/><br/><br/>Swim DC 10 (calm water) for Aria, mod 19. Swimming is normally 1/4 speed, or (under epic usages) regular speed at DC +20 (curiously, I don't think there's an intermediate '1/2 speed for DC +10' anywhere). So with half her checks (11-20) she'd make the DC 30 and half not, for an average of five-eights her speed, (37.5' per round long-term, and individual move actions, rounding down, will be 5' or 30'). Remind me to give her 1 more rank next level up (or keep a and fuse a Str item at some point); with 1 more point she'd've been able to make the DC 30 check all the time by taking 10 (when allowed to take 10 anyway).<br/><br/>Whereas Kass has a swim speed of 60' feet from the pearl (and can charge underwater; actually so can Aria but distances will be short due to her speed (http://www.wizards.com/default.asp?x=dnd/rg/20040622a (http://www.wizards.com/default.asp?x=dnd/rg/20040622a))).<br/><br/>I think they can speak underwater (without water breathing it would drastically reduce how long you could hold your breath, although I don't think there are actual rules for that, and spellcasting with a verbal component would involve a concentration check).