Talk:Ancient Construct/@comment-126.162.219.158-20130605065311/@comment-4632427-20130605102951

It normally takes a week to reappear if you kill it, so I wouldn't worry about it until at least a week has passed since you noticed it despawned. If it's still gone after that, you could try contacting Z2Live support on their website (nobody there looks at this fansite). Whether you try that or not, it'll probably reappear when the next patch rolls out, as those often reset respawning battles.