Caleb and Caitlin stood beside the river, staring into each other's eyes. She trembled as she worried if he were about to say goodbye.

But then something caught his eye, and his line of vision suddenly shifted. He looked at her neckline, and seemed transfixed.

He reached out, and she felt his fingers brush her throat. She felt metal. Her necklace. She had forgotten she was wearing it.

He lifted it and stared.

"What is this?" he asked softly.

She reached up and put her hand over his. It was her cross, her small, silver cross.

"Just an old cross," she answered.

But before she'd finished saying the words, she realized: it was old. It had been in her family for generations. She hadn't remembered who gave it to her, or when, but she knew it was ancient. And that it had belonged to her father's side. Yes. It was something. Maybe even a clue.

He stared intently, examining it.

"This is no normal cross," he said. "Its edges are curved. I haven't seen one like this for a thousand years. It is the cross of Saint Peter," he stared, mesmerized. "How did you get this?"

"I've...always had it," she said breathlessly, her excitement growing.

"This is the mark of an ancient coven. Of Jerusalem. A secret coven, one of extreme power. It was rumored to not even exist. How do you own this?"

She felt her heart pounding. "I....don't know. I was told it was my father's. I...hadn't even thought of it."

He turned it over gently, looking at the back. His eyes opened wide.

"There is an inscription."

She nodded, suddenly remembering. Yes. There was an inscription. What?

"Something in Greek, I think," she said.

"Latin," he corrected. "Spina rosam et congregari Salem," he said, and then looked at her, as if expecting her to understand.

She had no idea. She never had.

"It says: The rose and the thorn meet in Salem."

He stared at her, and she stared back.

Her mind raced, wondering what that could mean. His eyes had shone with a newfound purpose.

"This was your father's. It must have been. That inscription is an ancient vampire riddle. He is telling you how to find him. He is telling us where to go next."

She stared back. "Salem?"

He nodded gravely.

He placed a hand on her shoulder. "I care for you greatly. I don't want to see you get hurt. This is my war. I don't want you dragged into it. This will get very dangerous, and you are not a full vampire. You can get hurt. You don't need to come along, especially now that I know where to go next. You have already helped me more than I can thank you for."

Caitlin felt her heart sink. Did he not want her around? Or was he trying to protect her? She felt like it was the latter.

"I know I have a choice," she said. "I choose to be with you."

He stared at her for a long time, then finally nodded. "OK," he said.

"Besides," she added, smiling, "I can hardly let you meet my family alone."