she trembled , trying desperately not to cry out . cassie realized her voice had taken on a slightly hysterical pitch , but she could not rid herself of it . hoping she 'd forget by then , he picked up his wallet and keys . youre kidding , we should go over there . he took another step and now he was within striking distance . the woman gave her a startled look . unless he knew -- - '' `` smith does n't know anything . '' 