Larry watched in horror as the Doctor collapsed, the Sirens having obviously gotten the better of him, psychically speaking. The remote fell from his hand and skittered across the pier towards Larry. He grabbed it, but didn't know what to do next. There were three buttons and two switches. He mashed the buttons and flipped the switches, but it did nothing. Frantic, he looked helplessly towards the Doctor and then towards the TARDIS. He decided to pocket the device and started dragging the Doctor towards the ship, already knowing he wouldn't be able to make it inside. The Sirens, or La'ameras, or whatever—they were fast. They were already pulling themselves up onto the pier—he had seconds, if that. But, it was the only thing he could think of to do, until he figured out how to use the remote.

Thankfully, Sally wasn't sitting idly in the TARDIS. As soon as the Doctor collapsed she started searching through the mess, trying to find some clue how to use that remote Larry had grabbed. "What do I do? How does it work?" she shouted in exasperation. The TARDIS immediately beeped at her and she turned back to the monitor, which was now showing a set of instructions. Sally ran to the door, and shouted out to Larry, "Flip the two switches down and press the middle button!" The she quickly closed the TARDIS door, remembering what the Doctor had told her; she needed to be inside when Larry used the remote.

"Switches down," thought Larry as he followed Sally's instructions. He had no clue how she knew what to do, but he would trust Sally with his life, so he held his breath and pressed the red button in the middle. The three La'ameras, who were a foot away and ready to lunge forward, suddenly collapsed, writhing in agony, then slowly fell still.

Sally bolted out of the TARDIS to join Larry, who was struggling to carry the unconscious Doctor. Together, they pulled him inside and lay him on the floor. Sally looked back towards the door and towards the Sirens. Larry shook his head, "They're dead, I think."

"And the Doctor?"

"I checked; he's alive. Did you know he had two hearts?"

"What?"

Larry motioned for her to check his pulse, and she felt his twin heartbeats. As she did so, the Doctor groaned just slightly and his eyelids fluttered open. "What happened?" he asked.

"I...I'm not sure. You dropped the remote, and Larry grabbed it and used it, and...I think he killed the Sirens? La'ameras."

The Doctor grunted as he got up and sat on the bench. "I'm sorry, I'm so sorry. I didn't want to have to use that, and I really didn't want you to have to use it. But they were...well, thanks."

"But what did it do?" Sally asked.

"It was a sort of special feature, I suppose. I added it to the psychic damper, just in case." The Doctor and Sally looked at the helmet, still on Larry's head. He sheepishly removed it and handed it to the Doctor as he continued the explanation, voice quiet and deep, "It magnified the psychic field, reversed it. Drowned them in energy. Burnt up their brains."

"Why didn't it kill you?"

"Oh, I'll survive anything, me," he smiled a small, sad sort of smile, then continued, "I still had enough neural blocks in place to save me. But I do have a pretty massive headache. If you don't mind, I think I'll take a nap. Haven't slept in, oh, two weeks?"

Sally and Larry looked at each other, wondering what he meant for them to do. They didn't wonder long, though, as the Doctor noticed their faces, and smiled. "You two can go pick out a room for yourselves. You might head back to the hotel and get your luggage. And then you can decide where you'd like to go. All of space and time to choose from," he said, as nonchalantly as his throbbing head would allow.

Sally was beaming, "What, we can come with you?"

"Yeah...yeah," he said, as if just deciding it at that moment. "You two've saved me twice now. I reckon you deserve to see the sights. If you want to, that is."

The two looked at each other, speaking that silent language they had learned in their past eighteen months together. Should we go? What about the shop? It's the chance of a lifetime...

"Oh yeah," Larry answered, "We'd love to come along."

Sally added, "Someone's got to keep you out of trouble."