As Jace and Clary pulled up to their street they saw Luke's truck parked outside Clary's house. Clary tensed, suddenly realizing she would have to explain to her parents why she would wasn't at school; and why she was with Jace. She could practically hear her mother already, using her disappointed voice that Clary hated. She imagined her saying about Jace being a bad influence, she sighed.

Suddenly she felt the bike lean as it turned into the alley behind their houses. Jace turned his bike off and looked at Clary.

"I'm assuming we don't want a run in with your parents?" Clary nodded sternly. "Then what should we do?"

Closing her eyes, Clary began thinking. She opened her eyes suddenly, pulling out Jace's stele.

"I was wondering where that went!" Jace proclaimed, Clary only rolled her eyes. She pulled her sleeve up and drew the silence rune, then did the same to the back of Jace's neck.

"Well, that covers us being heard, but I thought our main issue was being seen?" Jace questioned, his brows furrowed.

Clary closed her eyes, wishing there was a way to make them invisible to not only mundanes, but to other Shadowhunters as well. As quickly as she thought it, she gasped, an image appearing in her mind. She grabbed Jace's arm and began drawing.

"Uh, Clary, that rune only works for mun-"

"Shh!" Clary dug her nails into his skin, silencing him immediately. His eyes widened as she added another line through it.

"I've never seen that before," Jace said quietly.

"I don't think its existed until now."

Clary stepped back and watched as Jace's fingers began to disappear. He seemed to fade first from the edges, seeping through until he was gone. Clary's mouth dropped open.

"What?" Jace asked looking behind him, slightly panicked. He looked down at his hands, they looked the same to him, and nothing felt different either. Clary looked all around her.

"Jace?" she whispered looking petrified.

He grabbed her arms gently, she screamed.

"Clary! What's the matter?" She reached out blindly, jumping slightly when she came in contact with Jace's cheek.

"It worked," she breathed in disbelief. She felt his lips, running her fingers along his cheek and jaw, his hair tickled her knuckles.

"Clare, you're freaking me out." Instead of answering him, Clary drew the same run on the back of her hand. Slowly she faded like he had. She faded into nothing. Jace gasped.

She reached her hand to him again; this time it was Jace who jumped at the contact. Her hand slid down until it met his. She squeezed it before walking back to the main road.

Jocelyn was in the yard, pulling out the weeds that had completely taken over the flower bed. Clary stepped beside her mom, praying the rune didn't fade prematurely. Her mother didn't flinch. Clary sighed in relief, covering her mouth suddenly. Jace looked in her direction, his face screaming are you crazy?! Jocelyn turned around, looking right through Clary. The teens back away slowly as her mother stood up with a garbage bag full of weeds; she walked into the house a moment later.

Jace and Clary ran into his house, bursting into laughter as the door closed. They stood there laughing until they were both leaning against the door gasping for air. When they finally calmed down they turned towards each other, as if sensing where they were.

"Am I looking at you?" Jace asked.

"I don't know, are you?" Clary laughed.

They went upstairs, bumping into each other twice.

When they got to Jace's room they sat on the foot of the bed, arms length away.

"Now what?" Jaced asked, squinting to the spot that had sank on his bed from Clary.

"We wait, I guess." Clary bit her lip, suddenly thinking of the things she could do while invisible. She blushed.

"If you could do anything right now while the rune still worked, what would it be?" Jace asked suddenly as if reading her mind. Clary thanked the Angles that he couldn't see her face turn a dark crimson red.

"I don't know," she lied, "run down a street naked?"

Jace laughed at her joke.

"Hm, that's a good one, except I already do that." He said in a serious tone.

Clary laughed, she grabbed a pillow and threw it at him; she jumped slightly as it stopped mid air and fell. Jace yelped.

He lifted the pillow up; it vanished. Clary realized that meant that the invisibility rune worked on anything they held. She felt proud that she had been the one to create this rune.

Clary suddenly stood up from the bed, suddenly filled with courage.

"How much longer do you think these runes last? It's been almost hand an hour?" Jace asked, sounding like an impatient child on a road trip.

"I don't know, the one I created earlier started to fade at around this time." As she answered she began to see Jace's outline appear. She traced it with her eyes, Jace was looking out the window, unaware that his rune was wearing off. She realized she only had a few seconds until her rune's powers also began to dissipate. She held her breath, placing her hands behind her back.

Jace looked in the direction of where Clary's breathing came from, he heard it speed up. Her silhouette appeared slowly. He breathed in as she looked up from her eyelashes.

"Clary, you're-" he started, looking down at his hands quickly.

"I know," she smiled shyly, releasing her hands that had been clasped tightly behind her back, revealing the shirt Jace had lent her at the school.