The Doctor stared at the screen, and at the Borg cube. His face was blank, but Martha knew him well enough to say that he was upset.

"We're sixteen light years from where we were at the start," Harry Kim reported from OPS. "Time indicates that we've been gone three days."

"And in three days, a Borg cube shows up," Janeway finished, angered. "Raise shields, arm all weapons."

"Won't work," the Doctor said. "Sorry, I'm so sorry."

"Shut up," Janeway snapped. "This is your fault anyway."

"Yes," the Doctor replied, solemnly, "yes it is. And if I caused this mess, then, logically, I'm the one who ought to fix it."

He pressed a button on Harry Kims console before Janeway could say another word, and on the screen, an image of the Borg Hive appeared.

"We are the Borg," the collective voice began at once.

"Yeah, yeah, head it all before," the Doctor snarled. "Look, I'm the Doctor."

The Collective said nothing.

"Time Lord. Time traveller. Two hearts. Gallifrey. TARDIS. Take your pick."

"Doctor," the Collective said suddenly, cold and menacing as always, precise, but quick. "You will surrender yourself or we will annihilate Voyager."

"Oh yeah, sure, surrender myself, absolutely," the Doctor smiled. "Got it. Coming now."

"Lower shields and surrender," the Collective ordered.

"Sure," the Doctor smiled, but Janeway walked up to him, shock on her face.

"Are you insane?!" she said, her voice a screeching whisper.

"Trust me," the Doctor smiled.

"Sorry," Martha said, from one side of the bridge, "but who are the Borg?"

"Oh, just a nasty remnant of the Caeliar," the Doctor said, grimacing. "Nasty, nasty remnant slash offshoot slash disgusting perversion. Think of the Cybermen, but without the full metal jacket. Love that movie," he added with a grin.

"They also assimilate people into their shared consciousness," Janeway said, her voice hard. "You want to commit suicide, I'll give you a phaser – but this…"

"I'm not committing suicide," the Doctor countered. "I'm just helping."

He grinned, deactivated the shields, and was gone in a flash.

"I've raised the shields again," Tuvok said. "No Borg transport detected on any decks."

"He's nuts," Tom Paris postulated. Martha looked at the cube, and suddenly, a smile, soft and small, was on her face.

"No," she said. "He's the Doctor."

--

He was surrounded by Borg drones. That was the first thing he noticed.

"Hello!" he yelled, grinning at the lot of them. Before he could launch into his usual rhetoric, though, they came for him, and injection tubules pierced his neck. He was mildly miffed - he'd been hoping to launch into the rhetoric.

Ah well.

He closed his eyes, and let them all in.

--

He had been gone for several minutes, and they had heard nothing.

"Captain," Tuvok began, "I highly suggest that we vacate the area. This vessel has been disabled but we have no idea for how long."

"It's in perfect condition," Harry Kim pointed out. "We leave, it might follow."

"Obviously, the Doctor has somehow paralysed the vessel from within," Seven postulated.

"Can he do that?" Chakotay asked.

"Time Lords have extraordinary mental prowess," Seven noted. "As I have already said, he has once before faced the Borg, and escaped assimilation. Logically, he could do so again."

Martha wasn't listening. It didn't matter what these people were saying – all that mattered was that the Doctor was gone.

"Captain," Harry Kim put in, his voice sharp with anticipation. "The Borg are hailing!"

Suddenly, a Borg chamber, spacious and empty, appeared on the screen. Then, to everyone's great surprise, guitar music started. Martha's eyes widened in recognition – this was one of her favourite songs!

Then the Doctor, still in his suit, his face pale, led a group of about fifteen Borg onto the screen, doing an exaggerated march/dance in time with the music. The they stopped, facing the screen, and the Doctor pointed a finger at the assembled bridge crew.

"#The boy with a thorn in his side!" he sang. "#Behind the hatred there lies a murderous desire… for l-l-love…"

Then the assembled drones began a sequence of movements in time with the music, and to everyone's great surprise, so did Seven of Nine. When the singing began again, a second later, she was singing too.

"#How can they look into my eyes, and still they don't believe me?

#How can they hear me say these words, and still they don't believe me?"

And then, to everyone's shock, Seven pointed with both her arms, then spun to face the wall, then threw her arms out in time with the next words.

"#And if they don't believe me now, will they ever believe me?"

And the Doctor echoed the movement with the next line.

"#And if they don't believe me now, will the ever believe me? Oh noooo…"

Tom Paris turned, and a grin of enormous proportions was on his face.

"I know this song!" he shouted, as they began the same verse again. "It's from nineteen eighties Earth!"

"I love this song!" Martha shouted over him.

"What does it take to shut them up?" Harry asked.

"#And if they don't believe us now, will they ever believe us?" the Doctor and the Borg asked.

"#And when you want to live, how d'you start, where d'you go, who d'you need to know?" Seven replied.

And then the dancing continued as the words dissolved into random "oh" noises. Janeway laughed out loud, as the Doctor smiled at the screen, winked, and then vanished in a green light, only to beam straight onto the bridge. He grinned again, and nodded to Tom Paris, who pressed in the command to go, just as the Borg began another song.

--

"Well, Doctor," Janeway said, smiling, as he stood on the threshold of his ship, "what can I say? Thank you for the most unusual log entry I'm ever going to enter?"

"That'd just about cover it," the Doctor smiled back.

"Thanks for not putting us in a cell," Martha added.

The rest of the crew had said their farewells, and it was down to these last three people now. And soon, Janeway knew, she would be alone in the cargo bay.

"Now, Captain," the Doctor added. "I need you to listen to me for a moment, because what I am about to say is important."

"What?" Janeway asked.

"When Seven of Nine tells you to avoid the Borg ship," the Doctor said, serious and grim, "listen to her. I promise you, just listen to her. You will not regret it. And you will regret it a great deal if you ignore me."

"Should you be meddling?" Janeway asked.

The Doctor smiled a grim smile.

"Always," he said to her, sadly, "do what you're best at."

And with that, he and Martha Jones walked into the TARDIS, and passed out of Kathryn Janeway's life.

--

"What was all that about?" Martha asked. The Doctor said nothing, but set a different course, flicking a variety of switches and then stopping the ship. "Where are we…?"

The Doctor walked out of the door. Martha followed, still confused.

--

Admiral Janeway, sitting alone in her quarters on the USS Einstein, thought back to the Doctor's warning as she travelled to the BOrg ship. Seven had told her not to, and the Doctor had told her to listen to her.

Then she thought of the Lady Q's warning.

"Seems like," she motioned to herself, "everybody says don't go to the Borg cube."

So logically, she added to herself silently, she decided that she ought not to go. Then she remembered something that the Doctor had said.

"Always do what you're best at."

And she decided.

She was best at ignoring warnings, and going in full steam ahead.

She smiled, more at peace than she had ever been, and accepted whatever was about to happen.

--

The Doctor crouched beside the grave of Admiral Kathryn Janeway, and smiled.

"Always do what you're best at," he repeated. "Knew I shouldn't've said that."

"She died?" Martha asked.

"Heroically," the Doctor added. "Doing what she did best – beating the Borg."

Martha smiled, and crouched down beside him. "You tried to change her history."

"I did."

"You meddled."

"I did."

"Should you have?"

"Nope."

Martha smiled again.

"Tell you what," she said. "Let's go visit her again."

The Doctor looked at her, and smiled back.

"Why not?"