It was Tuesday morning at the LaMontagnes house and things were going as planned. Jennifer had Maisy and Henry up and ready for school by the time Will finished breakfast.

"Today we have eggs for Mister Henry and Cheerios for Miss Maisy" Will said placing a plate full of eggs in front of Henry seat and a bowl of cereal in front of Maisy's.

The kids smiled and sat down to eat.

"Mommy hair" Maisy said with her mouth full.

"Chew first Mace" Will said holding a laugh. The girl was just too cute.

JJ did pig tails on the child's hair, quickly drank her orange juice and ate her eggs and soon they were walking out the door.

As always Maisy hugged Jennifer extra tight just knowing her mommy might need to travel again.

"See you soon Maisy" JJ smiled and kissed the girl's cheek.

"See you mommy" Maisy smiled. "Bye dada" she said quickly and then ran to the school with Henry.

Jennifer went to the car and William dropped her off at the bureau.

"Call if you have a case" Will said.

"Okay. Love you" JJ said and kissed him goodbye.

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At the 6th floor Jennifer was greeted by Emily.

"Was she happy when you arrived home last night?" Emily asked knowing how little Maisy still struggled with the fact that JJ had to stay away sometimes.

"Yeah. She was sooo happy" JJ smiled and Emily smiled back.

Suddenly Garcia arrived. "How are my favorite lady agents doing?" She asked.

"Great and please don't tell me we have a case" JJ said making a begging face.

"Nop" Penelope said quickly and JJ breathed out relieved.

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At school Maisy had a great time and the day seemed to be passing by quickly.

At the BAU Jennifer helped Rossi and Emily with some consults and soon it was lunch time. Derek arrived with food for the team and they got together at the conference room to eat.

JJ was almost done eating when suddenly her phone rang. She looked at it and didn't recognize the number.

"Hello, this is Jennifer" she said.

"Hi. I don't know if you remember me but I'm Kim, Maisy's aunt. I'm looking after Connor and Julie" the woman said.

"Why are you calling me? Who gave you my number?" JJ said trying to sound calm. She didn't want Maisy to have anything to do with that woman.

"The social worker gave it to me. It's sort of an emergency" Kim said.

"What kind of emergency?" JJ asked now worried. Emily put her hand on Jennifer's shoulder and JJ looked up to find the team staring at her.

She stood up and said "can you just tell me what's going on?"

"It's Julie" Kim said.

"What's with Julie?" JJ asked.

Now the team realized it was something to do with Maisy.

"Julie is sick" Kim said. "She has leukemia" she said and got choked up. "Um... we tested Connor but he's not a match. We need to try Maisy. It's her only chance"

JJ was speechless. She felt bad for Julie, of course she did. But she couldn't believe that after what Kim did she still had the guts to go after them.

"Jennifer?" Kim said and JJ got pulled back to reality.

"What hospital are you in?" She asked.

"Lansburgh Children's Hospital" Kim said. "You just need to take Maisy to a hospital and do a test. They'll let Julie's Doctor know if Maisy is a match" Kim said.

JJ took a deep breath and said "look I'm going to do this for Julie but you and your family will not see her or have anything to do with my daughter. Do you understand me?" JJ said.

"Yes. Thank you. Thank you so much." Kim said. "Do you have an email that I can send Julie's file to. You'll need to give that to the Doctor"

"Yes. I'll let you talk to someone who will give you an address" JJ said and handed the phone to Garcia.

"Penelope, give her an email she can send Julie's papers. I don't want connections with her. It's bad enough that she has my number now" JJ said covering the mic on her phone.

Penelope gave Kim an email address and then handed the phone back to JJ.

"Send it to that email" JJ said.

"I will and please test Maisy today if possible. They don't think Julie has much time" Kim said.

"I will" JJ said. "Goodbye" she said and hung up. She put the phone down at the table and the room was dead silence. She looked up and Reid said "what happened to Julie?"

"She was diagnosed with leukemia. Kim wants to see if Maisy is a match for a bone marrow transplant" JJ said.

"Oh my god" Emily said feeling really bad for little Julie.

"Are you going to get her tested?" Hotch asked.

"Of course. Julie is her sister. She loves her and it's not their fault that their aunt is insane" JJ said.

Hotch nodded agreeing.

"Well... I gotta call Will" JJ said.

She went to her office and called her husband. Will agreed Maisy had to get tested because if Julie died they could never live with themselves knowing they did nothing. So JJ printed Julie's papers and Will went and picked JJ up and they headed Maisy's school. All the kid needed to do was a blood test so they wanted to just get it over with.

At school Maisy found it weird that they were there early.

"Where's Henry mommy?" The little one asked.

"Henry will stay for a little while longer" JJ told her. "Come here" Jennifer said and picked Maisy up. She carried the girl to the car and sat down with Maisy on her lap.

"We gotta talk Maisy" JJ said and by looking at her mother's face Maisy knew it was serious.

"Kim called." JJ said.

"No" Maisy said and hid her face on JJ's chest.

"It's okay. She's far far away" Will said and Maisy looked at him. He was standing next to them just outside of the car.

"She called because Julie is sick" JJ said.

"She has the flu?" Maisy asked so innocent.

"No baby she doesn't have the flu" JJ said with a sad smile and tears in her eyes.

Maisy saw the tears and asked "is she okay?" as tears filled her eyes too.

"She's very sick but we can help her." JJ said.

"How?" Maisy asked.

"We can go to the hospital and they'll give a little pinch in your arm and take a little bit of your blood, so it can help her."

"Like a shot?" Maisy asked.

"No, just a little blood test. There's no medicine in it. It's just a little pinch and then it's all done" JJ said.

"And Julie will get better?" Maisy asked.

"They think that can help so we have to try, right?" JJ said.

Maisy nodded.

"Will you let the doctor do the blood test?" Will asked.

Maisy nodded again but looked down. JJ touched the girl's chin and Maisy looked at her.

"Mommy and dad will be right there with you, and we'll hold your hand. It's just a little pinch" JJ said.

"Okay" Maisy said. "I want Julie to get better"

"Alright" JJ smiled at how sweet Maisy was.

She gave a sweet kiss on the girl's cheek and then put her in the car seat. Everyone took their places and Will drove to the hospital.

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When Will, Jennifer and Maisy arrived at the hospital Julie's doctor had already let the hospital know the child was going to get tested there soon so they were ready for her.

Maisy was scared and cried a little but did just fine when they drew some blood. She squeezed Will's hand tight as JJ said soothing words so she would calm down. Soon the test was done and Will rocked Maisy around as JJ talked to the doctors.

"We'll have the results tomorrow morning and we'll let you know as soon as we find out" Doctor Harland told Jennifer.

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Wednesday morning came and since they'd hear from the hospital that morning JJ and Will decided to keep Maisy home and to stay with her.

The little girl woke up and was confused to why she was home still and Henry was at school. JJ explained that the Doctor was going to call to let them know about Julie and she thought staying home was better so Maisy would know too. Of course JJ didn't really want Maisy to know just yet what would happen if she was indeed a match.

So they spent their time watching tv and snuggling till 11:46 when Doctor Harland called.

"Hello, this is Jennifer" JJ said.

"This is Doctor Braden Harland from Children's National Medical Center. I'm calling regarding Maisy's test" he said.

"Yes"

"I'd just like to confirm some of the information you gave us" he said.

"Sure" JJ said a little confused. She thought he would just tell her if they matched or not.

"She's 4, right?"

"Yes" JJ said.

"And she is Liza and Thomas's biological child?"

"Yes"

"Alright." He said and took a deep breath. "Well, could you and your husband come by so we can discuss a few things?" Doctor Harland asked.

"Yes. But is Maisy a match or not?" JJ asked confused.

"She is not" Doctor Harland said.

"Then why do you need to see us?" JJ asked.

"Because according to the test they are not even sisters"