Author's note: sorry guys, it wasn't very fair of me to leave a cliffhanger like that at the start of what I should have known was going to be a busy family day! I'll make it up to you, I promise.

~*~

"Wait a minute," Daniel said, before Jack or anyone else could even open their mouths. "You just said that guy in there isn't human."

"I said he was only partially a human." Thor corrected.

"Then he can't be a genetic match to Shawn," Carter said, confused. "Shawn's a little boy. There's no way he's-"

"What did you do to him?" Jack growled at the Asgard. His reaction was automatically suspicious towards the Asgard, since they were the ones that had been talking about using Shawn ever since they first met him. God only knew what kind of experiments the little gray aliens had been performing on the boy – and probably without Shawn even knowing.

"We've done nothing to him, O'Neill." Thor assured Jack, looking over at him calmly, although everyone else in the room was tense, as if expecting Jack to go over the table after Thor.

"There's no way he can be a match for that guy in the infirmary," Jack said. "Not unless you've done some-"

"I'd like to run these tests myself," Fraiser interrupted. She was always suspicious of results that weren't her own.

"Yes, that's a good-"

"Wait a minute," Daniel interrupted again. "If he's only half-human, what's the other half?"

"We are not certain. We were only checking for human DNA, after all." Thor said. He looked at O'Neill again. "This is as much a surprise to us as it is to you, Colonel O'Neill. The Asgard have done nothing to him. I, myself, have been in charge of his instruction and I would have been the first to know."

"Who cares what it is?" Jack asked, annoyed that Daniel had even brought that up. "Change him back!"

"We did not 'change' him in the first place, O'Neill." Thor repeated. He gave what was for him an exasperated sigh, and turned to Hammond. "The Asgard are looking into this, General, but we understand that you will want to do your own investigating. I will bring the samples for Doctor Fraiser to run her own tests on – although she is welcomed to use the equipment on my ship for faster results, and will be at your disposal should you have any more questions."

"I've got a million quest-"

"Colonel." Hammond looked over at Jack, stopping his interruption. He waited until he was sure that O'Neill wasn't going to say anything further, and then turned to Thor. "We appreciate that, Thor. The sooner you can get those samples back to Doctor Fraiser, the better, I think."

"I'd like to see your results as well," Fraiser said.

"Of course." Thor looked at the doctor. "If it is acceptable, I will take you back to my ship with me so you can get started."

Fraiser looked at Hammond, but the General made it plain that it was up to her. She'd have access to faster results, and far better technology, but she did have a patient in the infirmary that might need her.

"I'd need to be in constant contact with my infirmary," Fraiser said. "At least have a way that they can contact me."

"We can supply that."

"This is stupid!" Jack stood up, pushing his chair back against the wall with a crashing sound. "He can't be Shawn. Not if he's not human. It's not like we found Shawn on another planet! We found him at Summer Camp. In the mountains. Doing kid stuff. Maybe we should test the other boys? Maybe they're all aliens, too? Maybe it's in the water up there." He turned to Sam, "How ya feeling Carter? Got any extra eyeballs growing out of your elbow?"

He turned and stalked to the door.

"Where are you going, Colonel?"

"I'm going to go see this guy for myself."

"Get back-"

O'Neill was already out the door, and wouldn't have listened if he'd heard him. He'd had enough. Time travel and aliens and who knew what else? For God's sake, he'd spent all morning on a dirtbag of a planet chasing false trails in order to find Daniel some kind of evidence to support who knew what theory, and then he comes home to this?

No one knew Shawn better than Jack did, and he knew the kid wasn't an alien. Part alien. He was just a little kid. This guy in the infirmary couldn't be him. But, Jack also knew that Sam wasn't wrong very often, and he'd come to accept that when she said something – even in speculation – it needed to be checked. So Jack was going to do some checking of his own. He didn't know what he was going to look for, but he was certain that if he could see the guy, he'd know if it were Shawn.

The others followed O'Neill, including Thor. Jack was angry, and while Fraiser was pretty sure he wasn't going to do anything to hurt her patient, you just never knew with him. They didn't say anything as they walked down the corridors to the infirmary, following an equally silent Jack. He walked into the infirmary and made a beeline for the bed the injured man was in, ignoring the medical personnel who asked him if there was anything they could do for him. The others stopped at the door, watching at a distance, waiting to see what Jack was doing.