A/N: Okay, this chapter's a bit different, because it's not focused on either the Doctor or Serenity. Instead, a new character shows up. If you watch Doctor Who, you will know this new character. But he won't be named just yet, I'm trying to maintain an aura of mystery here.

Free e-Oreos if anyone guesses who the new arrival is.

And please, don't forget to review.

Chapter Three

While Martha was talking to her strange new friends, and the Doctor was off getting the Tardis back, the crew of another ship were about to find their lives changed forever. It was early in the morning, and most of the crew of the Dragonfly-class ship Amerauder were sound asleep. Just the second-in-command, Kat, was awake, sitting up on the bridge, and even she was starting to nod off.

Kat was jolted awake by a beeping from the console. She sat up in her chair, looking at the monitors to see what was wrong. "Huh?" She checked every readout she could, but couldn't work out what had triggered the beeping. She decided that the best thing to do was to ask the Captain, who usually knew what to do in these sorts of situations. Heading down the corridor to the crew quarters, she reached the Captain's room and pressed the intercom button.

"Captain? You awake?"

A few seconds later, someone replied. "What is it, Kat?"

"Got a problem on the bridge. Thought you might know what to do."

"Okay, I'm coming."

A few minutes later, Kat was back on the bridge with her Captain, telling him about the odd beeping. "Where was it coming from? The noise?"

"Uh… that way." She pointed to a section of the console, and was surprised to see a very odd look on the Captain's face. "Sir? Are you okay?"

"What? Oh, yes, I'm fine. Really." He then opened up the underneath of that section of console, fiddled with a few wires, then closed the section and pressed a button on the navigation screen. "Kat?"

"Yes, sir?"

"That beeping went off because the ship detected something that I told it to look for. I've set it up so that the computer will trace the signal and show us where to go."

"Sir?"

"Don't worry about it, Kat. Everything will be fine, I promise."

"Uh… okay, sir."

"You can go and get some sleep now. I'll stay here."

"Are you sure, sir?"

"Yes, it's fine. Couldn't sleep anyway."

"Well, thank you sir. Very kind of you."

"Good night, Kat."
"Good night, Captain."

As Kat headed for her own bunk, her Captain settled into the pilot's chair, positioning it so that he had a clear view of the monitors. One of them was now showing a set of co-ordinates for a spot on Persephone. He saw that, and smiled.

"So, Doctor, what are you doing on Persephone?"