Emily and JJ pace impatiently. The bomb squad commander had insisted on robotic entry first. That had taken an hour. Then he sent in a tech, who had now been in the house for 45 minutes. When the man's radio crackles to life, the agents turn to him.

"No explosives to report, sir. House is clear for entry."

"Copy." The commander looks to the agents and nods.

"Thanks," Emily tells him. "We appreciate the assist."

JJ and Emily head inside the house. There is a turned over chair in the dining room, bills and a checkbook spread out on the table. JJ raises an eyebrow.

"Bills after midnight? Insomnia?" It was a common malady for FBI agents.

"Probably. Or maybe my warning earlier got him antsy and he was too keyed up tonight to sleep. Head upstairs and check out his room. See if anything jumps out at you. I'll check out down here," Emily orders.

JJ nods and heads to the second level of the house. Emily flips through the bills, seeing nothing out of the ordinary. She heads into the kitchen. She sees the coffee pot on.

"Couldn't sleep so you make coffee. Some things never change," she murmurs, knowing she's done the same thing.

She walks into the laundry room and flips on the light. The bulb explodes, raining gas and fire down at Emily. She screams and leaps out of the doorway. She feels her shirt on fire and drops to the ground, rolling to extinguish the flames that burn her arms, torso and face. By the time she is out, JJ has raced into the room, gun at the ready.

"EMILY!" She holsters her gun and grabs the moaning agent, dragging her out of the house as the fire starts to spread from the laundry room to the kitchen. Once outside, she pulls her phone and hits the auto dial for 9-1-1. "This is Agent Jennifer Jareau of the FBI. I need an ambulance and fire response to 382 West Potomac Road. We have an officer down. Repeat: OFFICER DOWN!"

She hangs up her phone and scans the street, her gun back in her hand. She wouldn't put it past the unsub to be waiting to ambush them.

"Take it easy, Emily. Help is on the way." Emily can only groan, the pain intense. "I know, baby. I know. Burns fucking suck. But help is on the way, baby. I swear."

"Li—light," Emily mumbles in agitation. "Light. Light…the light…"

"Shh, baby. Don't speak. Just hang on, baby," JJ says to her wife, trying to calm her.

JJ breathes a sigh of relief when she finally hears sirens approaching. She reluctantly turns Emily over to the EMT's as police and firefighters arrive. She tells them what she knows as the fire department attempts to save the house.

"So how did the fire start?" One officer asks.

"I have no fucking idea. I was upstairs. I heard her scream. By the time I got down there she had put the fire on herself out but the place was starting to burn. The fucking bomb squad cleared the house. They must have missed something!" She says with frustration.

The officer nods. "And where is the owner of the house?"

"Fuck if I know," she says before catching herself. She takes a steadying breath. "Sorry. He's disappeared, along with other agents. It's an ongoing investigation."

"I'm sorry," he says sympathetically.

JJ ignores him as she sees Emily getting loaded into the ambulance. JJ stops one of the EMT's. "She hates morphine. Not allergic to it, but she hates it."

She nods. "I'll let the doctors know. Burns don't look as bad as I've seen. They may be able to use something else."

JJ nods. "Good. Tell her…tell her I'll be there soon."

The EMT nods and gets in with Emily. JJ swallows her fear and anger as the ambulance doors are closed. She pulls out her cell phone and calls Morgan. She hears the sleep in his voice when he answers.

"Morgan," he mumbles.

"Emily is on her way to the hospital." She hears him sit up on what sounds like Hotch's couch. "I have no idea what happened but she got burned. Rampone's house is fully engulfed. Any evidence is gone."

"Son of a bitch!" Morgan hollers. "So now he has Rampone, too. What the hell is going on?"

"I don't know, Derek. All I know is I was upstairs and somehow Emily started a fire. The bomb squad cleared the house so it had to be something they weren't looking for or something they could overlook."

"Did Emily say anything?"

"Her body is in shock. All she kept saying was 'the light' and I guess that means the flame hurt her eyes." But suddenly a memory hits JJ. "Oh, FUCK! I know how the fire started! Do you remember that case back, God, right after Elle joined the unit? The college arsons?"

Morgan shrugs. "I think so."

"Morgan, there was one started when gas was put in a lightbulb."

Then it hits Morgan. "Right! And when the professor turned on the light it ignited!" Morgan squeezes his eyes shut. "God, it killed him. Emily got fucking lucky."

JJ nods. "I…I know. But Morgan, that case…the other two agents…even the bomb…there is only 2 connects to everything: Hotch and Gideon."

Morgan slowly nods. "And a connection between those two is Rossi. That son of a bitch wanted Gideon just as much as he wanted Hotch."

"But Emily's warnings to the previous agents sent Gideon to safety at Quantico. He's trying to draw him out. That's why he's taunting us. He wants Gideon out of the office and in the field."

"Not going to happen now," Morgan assures her. He thinks a moment. "You know, that arson case…we originally talked to a bunch of women named Karen about any exes they had. We looked at the wrong people."

JJ nods. "Yeah, and?"

"JJ, what if all the clues are pointing at cases where we made mistakes because we made a mistake that this unsub paid for?"

JJ's eyes widen. "Like he was wrongly convicted," she finishes. "I can see it."

"Me, too. Get to the hospital and check on Emily. I need to get Garcia to do another check."

"Right."

"And, Jayje? She'll be okay. She'll be mad as hell, but she'll be okay."

JJ smiles. "I know. Thanks."

A/N: Arson refs 1x02 Compulsion