Disclaimer: I am not Cassandra Clare.
The mirror did not look at all special, it did not even have a frame. It was a sheet of pure reflective glass, perfectly round.
The only abnormal thing about it was the fact that it did not reflect what was above it. Despite its normalcy it was entrancing to look at. Currently, the mirror was blank; its surface a sliver gray.
"Now what?" asked Jace.
"Now we tell the Clave everything, of course." answered Mayrse.
Magnus cleared his throat.
"You know... I forgot to mention... Ummm... The kind of magic it takes to do mind control and stuff on a demon, is, well, maybe just a little bit illegal."
"It's ILLEGAL?" screeched Mayrse.
"It was your idea." said Magnus.
"But I didn't know it was ILLEGAL!" she yelled.
"Yes, well, now you do." while he was speaking Magnus had begun to creep towards the door. There was a pause as Mayrse collected herself.
"PEOPLE!" Alec yelled, though it was unnecessary, considering the fact that there had just been a pause.
"We're just wasting time bickering over the past! What we need to do right now is think about the future!"
"I have an idea." said Clary.
"What is it?" Alec inquired.
"Let's all go to sleep."
"THAT'S NOT GOING TO FIX ANY OF OUR PROBLE-"
"We're all about to keel over anyway Alec. It's one in the morning."
"Fine." Alec sighed, evidently too tired to fight back.
Everyone dispersed; most would stay at the institute, but Magnus was headed to his apartment.
After what seemed like half an hour, but was really six hours, Clary was roused frantically by Simon.
"WAKE UP CLAAAAAARY!"
"Thanks for the wake up call." she murmured, looking over at her clock.
"Clary th-"
"Eight o'clock? Simon! You know I was up till two last night! How could you?"
Clary had not ha D the money for a cab to Luke's so she had walked back and arrived around two in the morning.
"Clary!"
"What?"
"There's something you should see..."
"Well show me then."
Simon led her down the hallway talking as he went.
"I think there where some demons out in the backyard making a lot of noise so I went out to have a look and..."
They had reached the backyard, and Simon opened the door. The lawn was covered with a black gooey substance and what Clary thought at first glance where Devark fangs.
"Look." Simon pulled out what Clary would previously have thought was a Devark fang, it was in fact a small blacked bone.
Clary took a step back in disgust.
"No, Clary come here! It's not a normal bone!" said Simon.
"I knowing a not a normal bone, it black!" she retorted.
"No, that's not what I'm trying to show you. The bone is from a human finger! And it's scratched!"
"Couldn't this have waited till ten in the morning? And also all of that is perfectly normal."
"It's scratched."
"Yeah, so, the demons that were out scratched the bones. Whatever. Do you have any idea where the black goo came from?"
Simon shook his head.
"Alright then. Now that we're finished arguing over bones I should probably go to the Institute and tell everyone."
"Ok..." Simon seemed sad, and Clary had a pretty good idea why, "Good idea. I'll stay here with the mess, to deal with... er...my parents."
Clary hit the call button for the elevator hard, hard enough to brake it, almost. After an agonizing minute or two it came and she wrenched open the door, then jumped back.
"Isabelle?" she asked.
"Yeah, it's me." Isabelle brushed past her.
"Isabelle, something happened, I think it was what the angel was talking about, needing the mirror? At Simon's place. You should come see."
"Usually you don't come get the whole institute for one demon attack, Clary." Isabelle said hotly.
"Isabelle! It's not a normal demon attack! You need to come see!"
"Fine." agreed Isabelle shortly, "Let's go."
They arrived at Simons house about twenty minutes later. From inside they heard the noises of shouting;Simon and his parents, Clary presumed. She felt bad about leaving him to deal with his parents, but she couldn't very well bring him to the institute, so she didn't have much of a choice.
"It's sounds like they're in the dining room." said Clary, "We can get out back without going through there."
Isabelle raised her eyebrows, but said nothing.
They entered, looking around briefly before sneaking down the hall and out the backdoor.
Isabelle let out a little gasp at the sight of the mess.
"Bones?" she asked.
"Bones." Clary confirmed.
"Simon said he heard a scuffle and went to see what was going on, and, well, this is what he found." Clary explained.
Isabelle knelt down to study the goo.
"I think," she said slowly, "I know what this is."
"What?" asked Clary.
"This is Sammael's trademark."