he shrugged and smiled , warmly pleased by the light in her eyes . `` i believe she would n't put it past him . a nother knock sounded at the door . she grabbed his wrist and pulled him into a dead run along the roof , heading for the edge . what were the criteria for their needs ? the idea was to allow the gas into the room slowly so neither man realized there was a problem . morning had just started and he was already trying to get rid of me . 