Alex stopped in mid slurp. Her ears tingled, just on the edge of hearing something. Like they wanted to twitch, but there just wasn't enough sound to react to. She looked around, scanning the dark shadows cast by Jack's fireball. Jack noticed her change in demeanor. His questioning eyes begged an answer, but he stayed silent. Alex closed her eyes, concentrating and straining to hear anything.

Her eyes popped open. She slid off her rock and into a crouch, knife at the ready. Jack ...