The worry that Billy had on his mind hadn't yet occurred to Cassie and she was giving Kate a watery smile that quickly became a frown at Kate's question. Kate's assumption was correct because Cassie was shaking her head in the negative. "Speed was here but he's, well, gone. But we haven't seen Eli or anyone else, no." She shrugged but just having Kate here right now was enough to give her hope. Slim hope, sure, but still hope. If Kate got amnesia maybe everyone else did, too (which begged the question, of course, why Cassie and Billy hadn't but there was no sense in poking holes in an already flimsy theory).