"It looks like it's written in code to me." Colby stood in front of the board, hands shoved deep in his pockets. "Or in another language." "Exactly!" Lexi whirled on him, brandishing the white chalk like a sword. White dust coated her fingertips and spotted her shirt. "It's a code and I know the key. It's all up here." She tapped her head, dust floating into her hair.