"I don't know," the Doctor spoke, his voice low as he turned slowly on the spot, seeking out any sign of life. No one seemed to be about. There were no people, the sound of chatter and busy traffic was nonexistent. The entire city was devoid of life, save for the pigeons, who waddled about Trafalgar square with similar confusion on their blank faces. They too seemed to be wondering why there no humans about to feed them with bird seed and the remainders of whatever fast food they had been munching on.<br/><br/>"This place is a ghost town," the Doctor spoke before looking up at the sky and squinting. "Has there been an invasion? Is London abandoned because of a viral outbreak? Have the people been sucked into an alternate dimension? Or did everyone just decide that London was cold and boring and made an effort to move to somewhere warm and exciting like Rio?"<br/><br/>The Doctor didn't waste anymore time wondering. He sprinted across the deserted square until he reached one of London's many red phoneboxes. He jumped inside and began dialing a number, his fingers pounding the numbers urgently before he pulled yanked the phone off its hook.<br/><br/>"I need to speak to Kate Stewart," the Doctor said as he dialled the number. "I need a run down of whats happening and I need it now," he hissed before holding the phone to his ear. The phone rang, but no one answered. The Doctor's expression was growing increasingly grim. "And now UNIT is picking up. That's not right. They always answer."