One the Doctor had grown used to the noise of the city, the dull hum of other telepathic beings was one of the first things that struck him as odd, especially after so many years of silence... until now, the main thing that had concerned him was what so many of them were doing in L.A, but as he tinkered at the TARDIS console in order to produce some scan results something very strange happened. Someone called him by name, loudly, undeniably.
The Doctor dropped his screwdriver onto the console surface and took a couple of disorientated steps backward, looking about suspiciously, as if the culprit would suddenly show themselves, despite the fact that the voice was clearly in his mind, and clearly wasn't Rose's. He found himself leaning against a supporting column so he took a couple of deep breaths, determined to focus. Who's there? he tried, so out of practice that he wasn't even sure it was going to make sense in his agitated state.