"Agent Walling," she said.

"Rachel? It's Cherie Dei."

Rachel knew right away that this would not be a Rez call. Cherie Dei meant Quantico. It had been four years since the last time. Rachel had been waiting.

"Where are you, Rachel?" "I'm at home. Where do you think I'd be?"

"I know you cover a lot of territory now. I thought maybe you-"

"I'm in Rapid City, Cherie. What is it?"

She answered after a long moment of silence.

"He's resurfaced. He's back."

Rachel felt an invisible fist punch into her chest and then hold there. Her mind conjured memories and images. Bad ones. She closed her eyes. Cherie Dei didn't have to use a name. Rachel knew it was Backus. The Poet had resurfaced. Just as they knew he would. Like a virulent infection that moves through the body, hidden from the outside for years, then breaking the skin as a reminder of its ugliness.

'Tell me."

"Three days ago we got something in Quantico. A package in the mail. It contained-"

"Three days? You sat on it for three-"

"We didn't sit on anything. We took our time with it. It was addressed to you. At Behavioral Sciences. The mail room brought it down to us and we had it X-rayed and then we opened it. Carefully."

"What was in it?"

"A GPS reader."

A global positioning system reader. Longitude and latitude coordinates. Rachel had encountered one on a case the previous year. An abduction out in the Badlands where the missing camper had marked her trail with a handheld GPS. They found it in her pack and traced her steps back to a camp where she had encountered a man and he had followed her. They got there too late to save her but they would have never gotten there at all if it hadn't been for the GPS.