The gravity mine would have reduced almost any life-form which moved into its field to a rather thin smear, but there wasn't even that left of the yellow demon-shape. Something, presumably something it was carrying, had turned it into a small blaze of incandescent energy as the mine flattened it out. Which explained the sound like a cloudburst. That had been the passage's automatic fire extinguishers going into brief but correspondingly violent action. Quillan's group stayed out of sight for the time being. He'd barely got the mine put away, along with a handful of warped metal slugs, which was what the mine had left of their attacker's mechanical equipment, and Trigger's cabin door locked again, when three visitors came zooming down the storerooms hall in a small car. A ship's engineer and two assistants had arrived to check on what had started the extinguishers. "They may," Quillan said hopefully, "just go away again." He and Trigger were watching the engineers through the viewer which had been extended to cover their end of the passage. They didn't just go away again. They checked the extinguishers, looked at the floor, still wet but rapidly absorbing the last drops of the brief deluge. They exchanged puzzled comment. They checked everything once more. Finally the leader made use of the door announcer and asked if he might intrude. Quillan switched off the viewer. "Come in," he said resignedly. The door opened. The three glanced at Quillan, and then at Trigger-plus-Beldon. Their eyes widened only slightly. Duty on the Dawn City produced hardened men. Neither Quillan nor Trigger could offer the slightest explanation as to what had started the extinguishers. The engineers apologized and withdrew. The door closed again. Quillan switched on the viewer. Their voices came back into the cabin as they climbed into their car. "So that's how it happened," one of the assistants was saying reflectively. "Right," said the ship's engineer. "Like to burst into flames myself." "Ha-ha-ha!" They drove off. Trigger flushed. She looked at Quillan. "Perhaps I ought to get into something else," she said. "Now that the party's over." "Perhaps," Quillan admitted. "I'll have Gaya bring something down. We want to stay out of your cabin for an hour or so till everything's been checked. There'll be a few conferences to go through now." Gaya arrived next, with clothes. Trigger retired to the cabin's bathroom with them and came out a few minutes later, dressed again. Meanwhile the Dawn City's First Security Officer also had arrived and was setting up a portable restructure stage in the center of the cabin. He looked rather grim, but he also looked like a very much relieved man. "I suggest we run your sequence off first, Major," he said. "Then we can put them on together, and compare them."