While Hammond and Sg-1 were trying to figure out what should happen to them, Jesse, Ethan, Riley, and Katie were in morning for Cassie. They had stayed away from the infirmary so that they wouldn't run into Janet.

Jesse went in search of Katie only to find her on the middle of the floor in Daniel's lab, holding a bloody knife in her hand. "Katie?" Jesse screamed, as she blurred to her side, only to find a rather large knife wound on her right side, and her shirt was soaked with her blood. "Oh, god." She picked her up and started for the infirmary. "Riley! Ethan!" She quickly blurred into the infirmary and almost collided with both Carter and O'Neill. "You guys have to help me."

"What happened?" Janet asked, as she came up to them with Cassie.

"She stabbed herself," Jesse reported, as she looked up at her only to freeze when she saw Cassie. "There's so much blood."

"Jesse?" Riley called out as he and Ethan came into the infirmary followed by Teal'c and Daniel. "What happened?"

"Katie stabbed herself." Jesse grabbed onto Riley's arm forcing him to stop. "Get Ethan out of here."

"Why?"

"Cassie?" Ethan asked in a very terrified voice, causing them to turn to see that he had stopped in front of Cassie. He had extreme fear in his eyes and he looked back to Jesse for reassurance that he really was seeing her. "Jesse, what's going on?"

"Ethan, why don't you and I go see if we can find Katie a clean shirt," Daniel said, as he slid an arm around Ethan's shoulders and directed him towards the door. "Plus, it's getting a bit crowded in here for the moment."

"Daniel, is that really Cassie?" They walked out of the room while Daniel tried to answer his question.

"Okay, what the heck is going on?" Cassie asked her mom, as she began to work on Katie and looked over at Jesse and Riley. "Who are they?"

"Cass, this is Jesse and Riley," Janet said, as she cut off Katie's shirt. "And this little one is Katie."

"Why are they scared of me?"

"We're not scared of you," Jesse said, as she went over to look at Katie. "It's just complicated. We'll tell you later."

"Okay."

Katie opened her eyes to see Cassie and she let out a scream, as she tried to get away. Riley quickly gathered her up in his arms and she buried her face in his shoulder. "No, Cassie's gone," Katie cried out, as she started to shake in fear. "This can't be real."

"Cass, why don't you and I go see if we can help Daniel and Ethan out," Jack said hoping to make the situation not so stressful for Katie.

"Sure?" Cassie then followed Jack and Teal'c out of the room. "This is so strange. Who are they?"

"We'll explain it all to you later."

"You better."

Back in the infirmary, Riley had finally gotten Katie calmed down enough for Janet to treat her wound. "Why did you stab yourself?" he asked her, as she began to fiddle with the bandage.

"I didn't want to hurt anymore," she answered without looking up at him.

"You hurt where?" Janet asked, as she came up to her side. "Can you show me where?"

"I hurt here." Katie pointed to her heart. "I miss Cassie."

"I know, little one. We all do."

"Who was that girl? She looked like Cassie but not the same."

"That's because she's a younger version of the Cassie that we all knew and loved," Jesse said, as she sat down on a stool and took up Katie's hands. "This is a different Cassie. This Cassie is living with her mom here on Earth. She goes to school and loves to play chess with Aunt Sami."

"But she's not our Cassie is she?"

"No, little one, she's not." Jesse reached out and tucked back a loose strand of Katie's hair. "But we really need to not treat her like a plaque. She is still a living person. We need to treat her as one."

"Do you think she'll play with me?"

"Yeah, she'll play with you," Janet said, as she came over and ruffled Katie's hair. "She likes kids." She then turned to face them. "I need to talk to you both in private."

"Okay," Riley said, as he shot a glance over at Carter. "Can you watch her for us?"

"Yeah," Carter said, as she picked up a picture book and sat down next to Katie on the bed. "Okay, this story is about a baby duck…."

Riley and Jesse followed Janet out into the corridor and she turned to face them. "Okay, Doc, what's wrong?" Jesse asked, as she leaned back against the wall.

"What really happened to Katie?"

"What? You think that I attacked her." Jesse came off the wall with her fists at her side closed. "How can you think that? I would do anything for her."

"I'm not accusing you of harming her."

"Then, what the hell are you accusing me of?"

"Jess," Riley said, as he touched her arm, forcing her to look at him. "Calm down."

"How can I be calm? She accused me of hurting Katie."

"I don't think she meant it to come out that way. I'm sure she's just concerned about Katie. That was a pretty deep wound of a young one to afflict on herself."

"I'm telling you the truth. I went to find Katie, knowing that she was left playing in Daniel's office, and found her in the middle of the floor. She had the knife in her hand and she was wounded. I then picked her up and took her to the infirmary."

"Okay," Janet said, as she went up and touched Jesse's arm only to pull back her hand rather fast. "What the hell?"

"What's wrong?" Riley asked her, as he turned to face Jesse.

"She's freezing to the touch." Riley touched Jesse's arm only to pull it away. "See. What the hell is happening to you kids?"

"Janet!" Carter called out, causing them to run into the infirmary where they saw that Katie was turning blue. "She's freezing cold to the touch." Jesse shot a glance down to see that her hands were turning blue at the tips and she stuffed them into her pockets. "What's wrong with her?"

"I don't know." Janet quickly checked on Katie's vitals and let out a small frown. "Her body temperature is normal. I don't understand this."

"Jesse?" Riley called out as she fell to the floor in a seizure. "Jess." He then noticed that her finger tips had turned blue. "Jess." He touched her face to find her freezing cold. "Stay with us."

"You need to leave," Jesse whispered to them, as she struggled to get to her feet. "This is highly contagious."

"What is it?"

"It's a new plague that the Goa'uld had developed."

"This makes everything so much better."

TBC