Here's the situation: I'm running with Alazkan in Luchuirp lands, doing his usual thing - farming xp. Spotted a gargoyle carrying golden hammer in the open and killed it. Since I've already casted mirror I couldn't pick it up so I ended the turn standing on top of it. Next turn - the hammer is gone. At first I thought that it got booted out of their territory because we don't have open borders and are not at war. But I've checked all nearby unclaimed and my own lands and it's nowhere to be seen. Unit list doesn't show it either, so it's gone for good. A bug?