Summary: Dr. Kavanagh's hatred for Dr. Weir spills over into revenge and poor Sheppy gets whumped - again.

Spoiler:- None really. Maybe a touch of Critical Mass and Sateda

Pairing:- Team friendship and caring witha hint of Sparky. No slash

Rating: - K+ – Mild Language

Disclaimer: - I don't own Stargate Atlantis or its super characters.

Sorry, no Beta so the mistakes are all mine.

My humble apologies to any Kavanagh fans out there? He is a very bad guy in this story.

Part 1 takes place just after Critical Mass.

Part 2 onwards takes place sometime between Sateda and Progeny.

Obsessive Revenge

By

Astraldust

Part 1 – The Desire for Retribution

It moved with silent stealth, its prey only centimeters ahead. The night howlers helped to camouflage its presence with their noise as it prepared to strike. The small mouse like creature froze as if finally sensing the danger but the warning came too late as a painless bite struck its hind leg before it could flee. The hapless rodent would take hours to die, hours of endless agony as the toxin slowly destroyed it but the Turaka had patience and would wait, for nothing could save the victim now from the deadliest poison known to the people of the fourth planet in the Menzurian system. Known and greatly feared for one single bite meant a long and agonizing death.

-SGA-

Dr. Kavanagh stormed around his austere room like a caged tiger. He had never felt so enraged in his entire life. Even his dressing down at Yale for nearly having destroyed a science lab had been nothing compared to Weir's accusations. Then they'd had the nerve to send that ape of a man in to terrorize him. To make him confess to a crime he did not commit, and his subsequent faint had left him humiliated and seething with a rage that threatened to spill over and burst a blood vessel.

Picking up the nearest object small enough to handle, he hurled it across the confines of his room causing it to bounce back at him. Ducking just in time, the object passed harmlessly over his head to land behind the bed. Abruptly, as if its landing had been a sign, Kavanagh suddenly went deadly quiet and composed as a plan for revenge filled his mind.

Now in an almost hypnotic state, he sat himself carefully on the edge of his bed and considered his options. Losing his cool and having a stroke wasn't the way to proceed he reasoned. No, the answer lay in causing her an immense amount of motional pain and distress because as Kavanagh already told Dr. Weir, she lived by her emotions. The action shouldn't be directed towards her personally as that would be way too easy and give him no satisfaction, whatsoever. However, there was one thing that would cause her far more agony than anything else he could do and that was if something bad were to happen to her favored pretty boy, to him.

-SGA-

"I don't believe it!"

"What don't you believe, Dr. McKay?" asked Teyla as she calmly handed the scientist the coffee and sandwiches she had just brought him.

"Err…thanks," Rodney muttered after taking an appreciative sip of his favorite java. "Dr. Kavanagh that's what," he declared, "The creep has gone and decided to stay on in Atlantis. And after all the commotion he made about being accused of working for the Trust."

Teyla looked slightly concerned. "Yes, it does seem a little strange that he should now wish to stay with us. I do not like the man or trust him."

"I'll second that." John Sheppard agreed loudly as he entered Rodney's lab with a turkey sandwich in hand and a beaming smile on his face.

Teyla smiled back at him. "You're in a good mood."

"Yeah, I guess I am. Caldwell is on the mend and on his way back to Earth. There are no Wraith threats at the moment and I've had a record four weeks without needing the infirmary for any reason other than getting a booster shot."

Teyla exchanged a quick smile with Rodney before answering. "That is indeed worth celebrating."

"Yes, yes, I would say so." Rodney agreed but his mind was still on Kavanagh. "So why in heavens name hasn't that creep gone back to Earth with the Daedalus?"

"Elizabeth told me that he all but apologized to her instead of the other way around." John answered him. "Then he requested that he'd like to stay with us for the foreseeable future and he promised to make an effort to be more agreeable with other expedition members. He also requested more off-world missions. Elizabeth felt that she couldn't turn down his request after all she'd done to him, so we're stuck with the jerk for the time being."

Rodney's face scrunched into an expression of absolute distaste. "Well, reformed or not, he'd better stay away from me."

John looked thoughtful. "Anyway, Elizabeth doesn't entirely trust his motives, so she's…kind of…asked me to keep an eye on him. I'd be grateful if you could do the same."

"Yes, of course, Colonel, and I will tell Ronon to do so also." Teyla reasoned.

Sheppard winced at that. "Err…no, you'd better not. Ronon's idea about keeping an eye on someone usually gets a little out of hand. You know what I mean. He…err…means well but he can be a bit heavy handed sometimes."

"Yes, right," Rodney muttered, "But do you really care what happens to Kavanagh?"

John turned a pained expression towards McKay. "No, not really but he still comes under the people I need to protect and we're lucky the guy didn't just go back to Earth and sue us for assault."

"Yeah, right as if the SGC would allow that."

"Allow or not, he could still cause us a lot of trouble with the IOA." Rodney made no reply to that so after a few thoughtful moments, John spoke up again. "Oh come on, I was in a good mood until all this talk about Kavanagh. Let's forget the creep for now and go watch a movie or something?"

Rodney was going to say that he had far too much work to do to waste an evening watching a movie but the look of pleading on John's face changed his mind. An evening with his friends was just what he needed, especially as he still found it a miracle that he now had such good friends. Therefore, he drove his laptop down, garbed his coffee and sandwiches, and muttered. "Well, what are we waiting for?"

Sheppard looked at him with a frown. He had expected a negative response at the very least. Maybe Rodney was attempting to turn over a new leaf as well.

-SGA-

Not far away from McKay's lab, the subject of their discussion sat in his drab quarters with a sickly satisfied grin plastered on his countenance as he analyzed his plans for the umpteenth time.

His ponytail waggled intermittently as he moved his head with a contented nod as he mentally crossed off his progress.

Stage 1 was already accomplished, getting Weir to allow him to stay.

Stage 2 was a little unsure, as he needed to bide his time, get people to like him more and trust him until a situation came along that he could utilize.

Stage 3 was the plan itself, whatever that entailed and carrying it out.

Stage 4 was to sit back and watch as Weir agonized as Sheppard suffered before her eyes. It would take time but Kavanagh had time, all the time in the galaxy.

TBC – Hope you like the beginning and please be kind and review.