"Zat," Pavel says, shaking his head, "I do not know. I do not think anyone does here. Zey all seem as confused to hawe us aboard as ve are to be here."

Which is not in the least comforting, but hey. Bones is here. Between the two of them, they should be able to figure something out. (If Spock were here the Vulcan probably would have done so already. Chekov's not sure whatever he said would be helpful, not really, but he'd have the knowledge anyway.]