Nortlav the Scalekeeper

[Crescend]

The last time Nortlav the Scalekeeper was listed as spawning in The Hole on Allakhazam is June 2003:
https://web.archive.org/web/20030604....shtml?id=6364

By July 2003 he's replaced by his Echo:
https://web.archive.org/web/20030912....shtml?id=6364

Comparing all the time stamps it looks like Echo of Nortlav is almost certainly 6 hours, but there's only two comments from before July 2003 (which means Nortlav the Scalekeeper): radda's "[Nortlav the Scalekeeper] is a 24 hours spawn" and my "this guy is almost always up," which could go either way. That means either Nortlav the Scalekeeper was 24 hours and the devs reduced the otherwise identical Echo to 6 hours, or they're both 6 hours and radda's guy was mistaken.

6 hours still seems more likely to me, but having the date of the change to Echo makes it more ambiguous versus 24 hours.

Still not a week, though.