“Then what is it?”

“We found something inside her backpack.”

A cold chill ran down my spine.

“What did you find?”

“The black phone Lily told you Mark kept in his toolbox.”
PART 8
When I saw that burner phone sitting on my sister’s kitchen table, I finally understood why Mark had kept staring back toward our SUV while police held him in the driveway.

PART 9