"I'm gonna assume you're waaaaay ahead of me on how to go unnoticed," Tyler told her. His eyes hesitated on her, curious, for a moment before he returned to his work with a palpable quiet happiness -- not happiness she was doing this, but happiness he could help.

"Okay, so the way I see it, you probably want two trips. First one, you plant small explosives along this line." He traced the path with a fingertip. "Second trip, all you bring is the heavy artillery. Put 'em down, detonate and " - he looked up - "boom."