Disclaimer: I don't own The Infernal Devices, nor do I make any profit from this Fanfiction

Angels and Demons

x-x-x

"What is it Gideon?" Gabriel hardly ever saw Gideon like this. He was genuinely worried.

Tears built up in Gideon's hazel eyes.

"It's Sophie."

An earth-shattering scream pierced the air.

"By the Angel! What was that?" Cecily said, now fully awake and standing by Gabriel's side at the door.

"Sophie. I-sh- she- she was hurt, badly, demon blood scorched her skin and the runes did nothing. Magnus is trying to help her now. He hasn't come out of her room since he got here. But she was screaming. It was the most painful thing I have ever heard. And I couldn't do anything about it." Gideon was now crying and Gabriel placed his hand on his brother's shoulder.

"Shall we go see her?" Gabriel suggested.

Gideon nodded silently and turned toward Sophie's old room; she was just about to move into Gideon's.

As they reached her bedroom door, Cecily noticed that all the residents of the London Institute were sitting outside the room.

William was sitting in one corner, holding a crying Tessa. Charlotte was situated on Henry's lap as he held her around the waist. Even Cyril and Bridget were there, looking extremely worried.

Cecily buried her head in Gabriel's still bare chest- his arms circling around her- wincing as she heard an earth-shattering scream erupted from Sophie's room.

"Gideon, I think you should sit down." Gabriel said to his pacing brother as whimpers and screams escaped through the thin, wooden door of Sophie's old room.

Gideon looked at his brother, as if opening his eyes for the very first time all night. He opened his mouth to say something, but closed it abruptly, thinking better of it, and sat down on the bench outside the door. Gabriel sat next to him.

"How did it happen?" Will asked curiously after a beat of silence.

Gideon sighed. "The Clave sensed demonic behaviour around the Institute, so Sophie and I said we would go and investigate. After searching and killing multiple demons, until about half five in the morning, I told her that there was none left, and started walking back to the Institute, much to her protest. She thought there were more and I told her she was being foolish and to come back with me.

"The next thing I know, Sophie is screaming as a demon attacked her. I managed to kill it, but there was already demon blood in Sophie. I bolted back to the Institute, summoned Charlotte, Henry and Magnus and once I was ushered out of her room, I came to get all of you."

Tears were flowing down his cheeks, Gabriel embraced his brother. Cecily stood there for a minute, before walking to Will and Tessa. William immediately opened his free arm, and motioned her to come closer to him.

She gladly complied and let William embrace her, whilst Tessa hugged her as well; Cecily was crying, but that was to be expected considering her best friend was fighting for her life.

All they could do now was wait.

x-x-x

Hours later, Magnus entered the hallway, looking exhausted.

Gideon's eyes lit up as Magnus exited Sophie's room.

"She'll be okay, just let her rest for now." Magnus said quietly.

"May I see her?" Gideon pleaded.

Magnus nodded and moved out of the door way and towards Charlotte and Henry.

x-x-x

When it was Cecily and Gabriel's turn to see Sophie – hey had taken turns visiting Sophie, as to not overwhelm her – they entered to find Gideon sitting in a chair next to the bed Sophie was carefully perched on. She gave them a soft, reassuring smile and nodded slightly there way.

"How are you feeling?" Cecily asked her eyebrows were knit together in worry.

"I'm fine really, Magnus works wonders."

Cecily smiled and walked over to Sophie, wrapping her in a tight hug. She smiled one last time at Sophie as Gabriel patted Gideon solemnly on the back, and turned to leave the room, Gabriel at her heels.

x-x-x

When everyone was finished visiting Sophie, her reassuring everyone that she was fine countless times, Charlotte deemed that it was too late for everyone to go back to sleep, much to Williams distaste and protest.

Cecily however loved mornings and took this time to explore the library's inventory. After wandering through the seemingly endless shelves for twenty minutes, she reached for a copy of A Tale of Two Cities. She had heard Tessa and Will go on and on about this book and decided to give it a try.

She smiled triumphantly, finally retrieving the book that was on the top shelf.

Just as she was about to sit down by the window to start the book, two strong arms wrapped around her waist and a mop of wavy brown hair appeared by her shoulder.

"Where did you go?" Gabriel mumbled into her shoulder sounding remarkably like a child.

"I've been here the entire time." She said laughing slightly.

"You're laughing at me!" he said raising his head so that his chin rested on her shoulder.

"I am not." she said with a bright smile on her face, giggling slightly.

He smiled at her and kissed her cheek. "Oh, I think you are," Gabriel raised his eyebrows.

She pecked his lips and the all too familiar feeling of fire coursing through her veins was back.

Slipping out of his grasp, she walked over to the window and opened the book. Moments later he joined her, slipping his hand into hers.

x-x-x

"Gabriel?"

Gabriel turned at the sound of his name; behind him was none other than Cecily Herondale.

"Yes, Love?"

"Could you help me prepare my speech? Sophie and Gideon's wedding is in just three weeks." She said. He knew she had written her speech, but she wanted it to be perfect. It was her best friend's – and hopefully future-brother-in-law, but she didn't need to know that – wedding. They were having a shadowhunter wedding that would take up the entire day. They both felt bad for Bridget, for she and a handful of other chefs had to make all the food for the wedding.

Cecily was a very independent woman, and he knew that, yet he also knew when it came to the ones she loved, she wanted things to be perfect.

"Sure."

They spent the next hour revising and editing Cecily and Gabriel's speeches; every now and then, Gabriel would bombard her with kisses.

Magnus had once told him that the Herondales love deeply, and once they give you their heart, it's up to you to keep it safe, and not let it break. For once a heart breaks, especially a Herondale's heart, it shatters.

x-x-x

Love Always,

If-x-you-x-knew