Almost fifty Shadowhunters were gathered inside the Institute and thirty more were on their way as they planned the attack on the vampires.

Jace and Clary were outside on the steps of the Institute as they waited for the meeting to get out.

"Do you think everything will turn out okay?" Clary asked.

Jace shrugged and watched the sunset. "I don't know, Clary. I honestly don't know."

She leaned against him and he put his arm around her.

"I want you to promise me that you'll stay out of trouble, okay?" Jace asked.

"I'll try."

"That's all I want."

Alec appeared on the steps and sat down next to them.

"Well?"

"We attack at midnight." He replied, running his hand over his face.

"Why so late?"

"They want everyone to be ready. Magnus is coming as well as Downworlders."

"Great. We need all the help we can get." Jace said.

12:00AM: Outside of Kristoff's Mansion

"Alright, everyone. It's a kill or be killed. Attack all vampires inside the mansion. Watch out for enemy and friend. Be safe." Robert announced as all of the Shadowhunters waited.

"Let's go."

Everyone began running in and as soon as Jace made it inside, he immediately scanned the area and targeted onto a vampire. He let out a battle cry and attacked the vampire, spraying holy water on it.

The vampire screeched and backhanded Jace, sending him sprawling. He regained his balance and the vampire was upon him again.

Jace slammed his elbow into his chin and brought his knee up to the vampire's stomach. The bloodsucker crumbled to the ground and Jace ran up a flight of stairs, finding a few other vampires.

"Shadowhunters!" One of them yelled.

They attacked and Jace had them both out in five minutes tops.

Alright. Who's the next lucky victims? He thought to himself, his adrenaline spiked.

He heard a scream and he ran up more of the stairs, wiping blood and sweat out of his eyes and found Clary fighting a white haired vampire on a roof. It was pouring rain outside.

This must be Kristoff. He thought, immediately jumping in to help her.

Kristoff smirked and started fighting Jace.

"Jace, what are you doing?" Clary exclaimed.

"Saving you. You were the one who screamed, right?"

"No."

"Ah, well. I guess I'm helping you."

"Enough chit-chat, Shadowhunters. Only one of us is coming out of this alive." Kristoff said.

"I guess you can't count, because there are three of us. Two is coming out alive." Jace said.

"Well, then. I guess I'll have to make it two." He sneered.

He ran towards Jace with his sword drawn.

"JACE, NO!" Someone screamed.

Clary jumped in front of him and the sword went through her.

"CLARY!" Jace yelled as Kristoff threw her to the ground.

Jace watched as she landed a few feet away and blood began pooling underneath her.

"Such a waste."

"DAMN YOU!" Jace screamed and attacked Kristoff with strength beyond his ability.

"This is new. I've never fought a Shadowhunter with equal agility and strength."

"SHUT UP, YOU BLOODSUCKING MURDERER!"

The vampire laughed and Jace fought back harder and harder, making Kristoff stumble with every blow.

Kristoff stumbled against the ledge and then Jace held his stele to the vampire's throat.

"Any last words?" He growled.

"I'll see you in hell, young Shadowhunter."

With that, Jace pushed the stele through his throat and yanked it out.

He threw the vampire down and rushed to Clary.

She was still alive, but struggling for breath. "Jace." She whispered as he pulled her into his arms.

"It's me." He said.

"I'm sorry. I couldn't…let him…" Her voice trailed off.

"I know." He said, cupping her cheek in his hand.

"I...love...you."

"I love you too. I love you too damn much to lose you." He said, unzipping her shirt and not caring about her body.

He found the wound and took his stele, drawing a healing rune on it. Then, he turned her over and healed the exit wound.

He pulled back and zipped her shirt back up.

Her eyes were closed, but she was still breathing, and Jace felt his fill with tears. He suddenly found himself sobbing and holding Clary close, rocking her in his arms despite the rain and lightning.

"Clary." He whispered through his tears, holding her tightly.

"Jace! Clary!" Isabelle yelled, rushing to them.

Everyone else was behind her and gasped as they saw them.

"Is she…?" Isabelle began.

"She's alive. She's very hurt, but alive." Jace said, looking up at them.

"What happened?" Robert demanded.

"She was fighting Kristoff and she jumped in front of me as he charged towards me with a sword. She sacrificed herself." He replied.

"We need to get her immediate care." Marsye said.

Jace nodded and picked her up. She moaned in pain and he kissed her forehead as they walked down the stairs.

Everyone was silent as they rode back to the Institute and when they arrived, Jace carried Clary into the Infirmary.

2:00AM: Infirmary

"You should go change." Alec said as he checked in on them.

Jace shook his head, holding Clary's hand.

"At least eat something."

Jace shook his head again.

"Sleep?"

Another head shake.

"Alright. Just come get us when she wakes up."

Jace nodded and Alec left.

This is my fault. I should have watched where she was. Jace thought.

"I'm sorry, Clary. I'm so sorry." He whispered, kissing her forehead.

She didn't do anything and Jace sat there, watching her.

"Jace, you need to sleep." Marsye said, walking in.

"No. I won't. I want to be awake when she wakes."

"I'll watch her. Lay down in the bed next to her."

Jace was surprised at her confirmation but didn't object and crawled next to Clary, pulling her into his arms. His eyes slipped shut and he fell asleep, holding the person that mattered most close to him.