There is one thing left to do. Actually it’s a pretty big thing. The Epiphyte people use Tombstone for all kinds of purposes, and there’s no way of telling whether other copies of that latitude and longitude exist on it somewhere. Most of Epiphyte is made up of inveterate computer users who would be just the sort to write little scripts to back up all of their old e-mail messages to an archive every week. So he whips up his own script that will just write random information to every sector on the entire hard drive, then go back and do it again, and again, and again, forever—or until the cops pull the plug. Just after he whacks the Enter key to send this command in to Tombstone, he hears an electrical buzzing noise from the van that makes his hair stand on end for a moment. He sees a cop in the video window, frozen. Then the screen of his computer goes blank.