had he been behind this , or was it just a coincidence that it had happened so soon after our recent conversation ? `` oh , you do n't have to do that , '' she argued automatically . we will fill you in as we travel , violet said over her back into the wind . even so , he was thinking , there might be some mixture of the gases . brad jumped in quickly `` we were only talking , and i showed her some magic '' . she seemed to be having an argument with herself . 