Clary had no idea what the Seal of Solomon was. It didn't look like a rune to her; it was circular with intertwining lines in the middle. Around the circle there were strange language that she couldn't read.

Jace laughed.

"There are loads of seals. Anyone can get their hands on one"
"He's right," Alec agreed, "people use these seals as charms all the time. They think that the seals could bring them fortune or protect them from demons,

Cas glared at them both.
"You do not understand. This is the original Seal that King Solomon wore. It was a ring that was key to warding off demons. It was lost and none have seen it since Solomon himself wore it."
"How come you know what it looks like then?" Isabelle questioned.

Cas straightened his shoulders and opened his mouth. Dean tapped his shoulder and cut him off.
"Cas is bit of a history nut."
"Dean, I am not a dry indehiscent fruit," Cas replied.

Dean rolled his eyes. Clary wondered if Cas always acted this strange.

"So, this ring was lost, but Clary had a vision of it. Why?" Sam inquired.
" I don't know, but the writing around the Seal. It's the name of a town. Stonington, Connecticut," Cas added.
"Wait you can read that?" Alec asked.
Cas ignored him and turned to Clary. She was uncomfortable. It felt like she was being x-rayed whenever he looked at her.

"You must come with me. The Seal may only present itself to you," Cas frowned.

"No," Jace growled, "Clary doesn't go anywhere without me."
"Or us" Isabelle added. Alec nodded.

Clary was relieved, but Cas was irritated.
"Look Cas," Sam consoled, "it's better if we all go."
Dean waved his hands towards the door.
"Alright let's go. Connecticut is only a few hours from here."

They all piled into the impala. Clary didn't mind sitting on Jace's lap. In fact, she liked having Jace's arms wrapped around her.

Dean and Cas stood a little ways away. Clary strained her ears, but she could only make what Cas said.

"I don't like this."

Dean dropped into the driver's seat.

"Cas is going to meet us there?" Sam asked.

"Yeah."

Dean glanced back at them.

"No doodling back there."

They pulled away. Clary watched Cas in the review mirror. He stood alone, then in a split second he disappeared. Clary twisted around. Cas was no longer there. Clary figured it was just the after effects of her headache.

"What's wrong?" Jace asked.

"I just- it's nothing."

She turned back around and leaned into Jace's chest.