The Doctor gave a short nod. "Two. One's not human. You might be onto something with that Weevil thing." The ever so slight difference in the sonic's whine indicated that the human life sign was going to need help fast. They had to hurry. If it was a weevil, then they might already be too late.

"Whatever it is, we don't need to startle it." Then again, he didn't need to warn her. Martha knew what she was doing. Instead he raised his voice just a bit, just enough noise so the beast wouldn't be surprised. "Hullo?" The Doctor kept the screwdriver's light focused, cutting through the dark. "We're not going to hurt you."