"Lestrade has decided that he will help us and will keep us updated on the search. He should have results in a few hours or so," Sherlock replied, throwing his phone to John, who was sitting on the couch with Amy and Rory. John muttered under his breath as he placed the phone on the side table. The Doctor stood up, proud of Sherlock.

"Good work. I'll be right back," he informed, patting Sherlock on the shoulder.

"Where are you going?" John demanded, raising an eyebrow.

"I need to get back to the TARDIS so I can identify the aliens. I want to make sure that they are the Gelth before we attack them," the Doctor informed as he wrung his hands. John glanced at Sherlock before nodding. "I won't be long, and it's been a few days. I should be able to enter the laboratory by now."

"Just hurry. We don't have a lot of time. I'm sure Moriarty, or whatever he is, is planning something. We haven't heard from them since we found Amy and Rory yesterday," John reminded as the Doctor went for the door. He turned when he got to the entryway.

"Make sure they're safe," he added before dashing down the stairs. Amy folded her arms and rolled her eyes.

"I don't need to be protected," she mumbled as the Doctor dashed down the stairs. He walked outside and paused, making sure that the Ponds didn't follow. After waiting a suitable amount of time, he continued on his way and called for a cab. The Doctor had swiped John's wallet once again, but vowed to give it back.

Once the Doctor arrived, he paid the taxi driver and walked into the laboratory. He showed the guards his psychic paper and they granted him access. It took him a moment to remember where the closet with his TARDIS, but he was able to remember the area. He wandered the floors, searching for the area where his machine was.

After an hour and a half, he finally found it and unlocked the doors, entering his borrowed TARDIS. She stroked the dimmed console and sighed. She still wasn't ready. Even if he wanted to leave, he couldn't. Amy and Rory were in danger as long as they were there. He cleared his mind and remembered why he actually came over here. He booted up the computer and did a scan for alien technology and lifeforms. The aliens did come up, and matched genetically with the Gelth. The Doctor sighed in relief and sat down, breathing in the TARDIS. Over the past few days, he really started to miss her. He wondered how he survived before he stole her.

After a good meditation session with the TARDIS, the Doctor left and locked the doors to the TARDIS and the closet, making sure that no one could ever get in. He hesitated to to leave, but did so anyway. Everyone was waiting for him back in 221b. He had new information that could save this version of the earth.

While the Doctor was on his mission, Amy pouted on the couch as Rory tried to soothe her. Sherlock knew nothing about comforting, so he went into his room to plan their next attack. John went to laptop to update his crime solving blog.

"Amy, you're being ridiculous. He's not leaving for good, nor does he think you're weak. He just doesn't want you to get hurt. He doesn't want any of us to get hurt. And he'll be back soon," Rory comforted as Amy glared at him. She sighed and stood up.

"I know he isn't going to abandon us, but I don't like it when he goes off on his own like that. It makes me feel useless and unwanted," Amy countered, walking into the kitchen. John glanced up at Rory and gave him a half smile.

"Women," he murmured, shaking his head. Rory nodded and shook his head, at a loss.

"What can I do? She won't listen to anything I say. It's like I don't matter compared to the Doctor," Rory complained rubbing his face. John sighed and returned to his laptop.

"I don't know," he whispered as Amy came back in with an apple. Rory gave her a small smile before she went over and kissed him on the forehead.

"You do matter, moron. Even compared to the Doctor," she informed before taking a bite of her apple and heading upstairs. Rory looked at John, who was trying to hide a smile.

"Sorry," he mumbled, finally smiling. Rory leaned back and sighed, wondering if the Doctor would get there soon. It was boring without something going on, and usually Rory was extremely patient. When the door opened again, Rory jumped from his seat as the Doctor came in with a smile.

"Where's Sherlock?" he asked giddily. Rory pointed upstairs, surprised by the Doctor's sudden happiness. Maybe he should have went to the TARDIS sooner. "Good. I'll go get him and share my exciting news with everyone!"

"Sounds good," Rory replied, secretly relieved to have him back, as the Doctor ran up. John closed the laptop and turned toward Rory.

"About time," he smiled, shaking his head and standing up. John and Rory followed the Doctor upstairs, where the time lord had opened Sherlock's door. Amy met them in the hallway as she caught a glimpse of the Doctor running past her door. They all walked into Sherlock's room as he stood in the corner.

"Sherlock?" The Doctor asked, surprised and concerned. The detective turned to face the time lord and smiled.

"Didn't think you would be back so early," he answered, looking that the people in his doorway. He walked toward the Doctor. "Do you have a plan?"

"In process, yes. The good news is that they are known as the Gelth. They are the same species as far as I can tell. When I defeated them the last time, I gassed them out. However, this may be a little more tricky. Somehow, they have created replicas of people, and I need to know how they did this," the Doctor answered as Sherlock smiled.

"Sounds like something we can find out easily. Then what?"

"Then we find out how they got in and stayed in there. I'm not sure if just gassing them will be able to work this time around. They may have evolved since then," the Doctor added, looking nervous. John raised his finger in question.

"When was the last time you dealt with these creatures?" he implored.

"For me, a few years ago. Lost count. For earth history, about one hundred fifty years ago. Roughly. Fought them off with Charles Dickens," the Doctor continued, smiling as he remembered his friend Dickens. John just put his head in his hand, completely shocked and confused. "Any other questions?"

"Are you even sane?" John whispered as the Doctor pointed at him.

"Of course not. Do you think I could survive in this universe if I wasn't?" he asked as he made a face. "On second thought, don't answer that question. Anyway, we need to set a trap for one of the Gelth. That is the quickest way I can think of to find out where they got their shape and how to prevent it from happening again."

"How far away are the swarm of Gelth in space?" Rory asked, stunning the room. He pursed his lips, thinking that he had something stupid. The Doctor approached him and stared at him.

"That is a fantastic question," the Doctor smiled, turning back around into the room. "They are about four to five days out. If we want to make a difference, we have to hurry. We have to stop Gelth Moriarty before the swarm gets too close. They won't be able to turn back if we aren't quick."

"Didn't you say there was a beacon?" Sherlock reminded as the Doctor pointed at him.

"I was getting to that. Even though getting the TARDIS would quicken the invasion significantly, they would still have a back up plan. If we destroy the beacon, then the swarm will be lost and confused far away from earth. However, they way we're going, standing here like statues, it's not going to make a difference if we wreck the beacon," the Doctor explained as he shooed everyone out of the room.

"What's our strategy?" John asked, reverting to his military training. The Doctor smiled.

"Capture one of the Gelth. I don't care which one, but we need one by the end of today. Tomorrow morning at the latest," he instructed as everyone stared at him. "Well, get going! We don't have all day!"

"Doctor-" Amy began.

"GO!" he shouted as all of them ran down the stairs. However, Rory and Amy met the Doctor half way down.

"I am not going in this hospital gown," Amy argued as Rory agreed. The Doctor sighed and thought of a solution.

"Well, hurry and ask John if there's anything," he sighed as Rory grabbed John in the kitchen. Amy thanked him and the Doctor as John went back upstairs. Sherlock had already vacated the flat, in the hope that this could relieve his chronic boredom.

"I'll be out and about," the Doctor informed, giving a small hug to Amy. She rolled her eyes as he ran out the door before going upstairs.

The Doctor walked out on the street and stopped by a post. How was he going to lure a Gelth into the open? Into a trap? He drummed his chin and headed off into a direction in order to think. He wondered what Sherlock had planned and started to wish he had asked the Consulting Detective before he left. For now, the Doctor was all on his own, which wasn't too bad. He knew he had gotten situations worse than this. Like when he had to find Prisoner Zero or when the Daleks had stolen the earth. This was nothing compared to that, but still, he needed a plan. And fast.

He kept pacing down the street, hardly paying attention to where he was going. He nearly got hit by three cars and one bicycles. Well, it might have been two. Anyway, he couldn't think of a good plan to get his original plan in motion. He hit his head a few times to get his thoughts flowing before he stopped. He looked around and realized that he had no idea where he was or where he was going. For the first time in eternity, the Doctor had gotten lost and all he had with him was a sonic screwdriver. He grumbled something angrily before turning around and finding a massive crowd that he had somehow walked straight through.

The Doctor walked across the street, wondering if he could back track somehow back to where he could know where he was. Rubbing his hands, he kept wandering and hoping that he would be found. He tapped a stranger on the shoulder, catching her attention.

"Excuse me. I seem to be lost. Can you tell me where I am?" the Doctor asked as the woman smiled, thinking that he sounded like a child.

"Eastern London. Why don't you know where you are?" she replied, almost laughing at him. He smiled good-heartedly and shrugged.

"I wasn't really paying attention to where I was going. Thank you, though," he smiled, giving her a bow as she walked away, thinking that he was an odd man. He rubbed his head and looked around, thinking how he was going to get back. Maybe even find the Gelth in a reasonable amount of time.