When she made it to where the history books were, her mouth dropped to the floor. She couldn't believe people were this harsh with books. It's not complicated to put them back on the shelf. Lucy groaned and once again began picking up the books and scanning their barcodes.

People would pass through the isle looking for books they needed for a research paper or just pure curiosity. Each time they asked where to find a book she would say she was new and was unsure as to where they were but that Jace could help them. As she watched the people walk away she said a silent apology in her head to them. Boy were they in for a treat.

Lucy was on her last book to clean up. She scanned the barcode and placed it on the shelf next to some book on the American Revolution. Exhausted, she leaned against the bookshelf and dropped to the floor. The girl looked around the section praying someone didn't decide to leave a book out of place while she put the last one away. Luck was with her for the floor was spotless as well as the surrounding tables and chairs. Lucy felt her face lift in a triumphant smile.

The smile was short-lived for a girl came storming towards Lucy. She couldn't make out what the girl looked like because the black hood on her sweatshirt covered most of her face. Lucy was surprised the girl didn't run into anything. What surprised her most though, was that she was calling Lucy's name.

The girl stopped just before she ran over Lucy's outstretched leg.

"Stand up," demanded the girl. Lucy did as she was told.

"Who are you?" Lucy asked. The girl standing before her took down her hood revealing a tired pale face surrounded by long pin-straight, black hair, and almost black eyes to match. The girl began to speak in a steady but rushed voice.

"My name is Isabelle. Isabelle Lightwood. I know you don't know me but you have to trust me. Understand?"

"I understand," Lucy said while nodding her head.

"Good because I'm going to give you something but you have to promise that you won't let anyone touch it no matter how much you trust them, even if they get on their knees and beg for it."

Without her permission, Lucy's mouth spoke for her. "I promise," it said.

For some reason, she didn't know why, she felt she could trust this stranger. She felt as if she knew her but just couldn't place where she met Isabelle.

Isabelle stared at Lucy as if to measure how much her promises were worth. She apparently decided she could fully trust Lucy because she reached into her sweatshirt sleeve and pulled out a book. Isabelle took a quick look around before handing it to Lucy.

She wasn't able to get a good look at the book but she saw the title on its spine. Clockwork Angel was written in an endless silver cursive swirl.

"What's so important about this book?"

"I'll explain everything later but for now I have to go. Hide it somewhere. Jace will help you with-"

"Jace? What does he have to do with this?"

"I told you I will explain later. Just go find him. Now."

Before Lucy could protest further Isabelle was gone. She sprinted to the end of the isle, spinning in circles looking for the other girl. Dammit! How did she do that, Lucy thought furiously. After a moment of hesitation Lucy began to search for Jace.