The Doctor saw the lamp hit the Travarian right on the head, making it's female form stumble back a couple of feet off the Doctor and growl viscously, pieces of glass sticking from the flesh that oozed blue blood. The Doctor then heard the familiar American accent threaten the Travarian, the sound of Dani's knuckles echoing over the growling of the angry alien. He knew he had to act fast, otherwise it would simply kill her. 

Reaching into his coat pocket with a shaky hand, he plucked out his sonic screwdriver and with all his strength, picked himself up from the floor. He then aimed the sonic at the Travarian through his still slightly blurred vision, spitting out a small mouthful of blood. 

"What a-are you doing here on Earth?" The Doctor grunted, trying to not slur his words. "The Travarian race have no reason to be here." As he was speaking, the Doctor made sure that he was directly in front of Dani, forming a protective stance around her. The bulky alien chuckled gruffly, not noticing the blue blood dripping over its eyes. 

"We want what is rightfully ours. We desire Earth. We want Earth. The Travarian race will have Earth." It stated. 

"Earth isn't yours," The Doctor said simply. "I don't know what you're planning, but you can't hide away in the streets of London forever. Trust me, if it's anything that is a threat to the human race, then I'll have to stop you." 

The Travarian laughed yet again, the blood dripping onto the floor from its face. "I don't know who you think you are, old Time Lord. But we will have what we desire. And you wont be able to find us." 

And then, in a flash, the female lifted up one of its arms and activated what looked like a metallic bracelet perched on its wrist and vanished in a flash of blue, leaving behind a few drops of its blood stained into the carpet. The Doctor lowered his arm to his side. 

"Teleport..." He said. Then, unable to withstand the aching coming from his old body, he staggered forwards slightly, groaning and wincing, before he fell to the floor in a heap.