It's been a while since this thread was active, but I didn't feel like it was necessary to make a *another* thread about The Secret Link, so I guess I'll try and revive this one.
So I found Clue #1 and Clue #5 the legitimate way, and I cheated a bit
and used the URL manipulation trick to find the other three. Most people that have solved the mystery seem to suggest that Clue #3's
"eighty-eight - and also thirty-one" and Clue #5's
"find it more quickly a webmaster will" seem to be the most relevant/useful hints.
I've gone over all of the existing threads about The Secret Link, and have concluded a few things:
First, the link doesn't look like a link.
Also, your cursor won't look like it's hovering over a link when your cursor on the link, so just moving your mouse around won't help you at all. You could randomly click everywhere on the site, and you'll probably eventually find it. Just remember that the link is invisible, so explicitly marked links should be ruled out on sight.
I'm assuming it's completely invisible, or disguised as something else entirely.
Second, even when viewing the site's source code, the link
still doesn't look like a link.
The secret link isn't actually a link in the sense that it's not an HTML anchor tag, but it is something you click that takes you to a different page.
the amusing thing about the secret link is that it isn't actually a link anymore.
So from this, I'm assuming that going through the site's source code probably isn't going to help me much, because I don't even know what I'm supposed to be looking for.
Third, the link isn't actually hidden on a specific page; it's hidden on
every page.
The Secret Link is not exactly on a particular page.
The secret link is on almost every page of the site, so don't get stuck on trying to find it on a certain page, like I did.
Fourth, the page that the secret link leads to has a filename that is a random string of letters and/or numbers.
Wait, wtf? The url of the secret link is
http://dragonflycave.com/ (a bunch of random letters that don't spell a word) .htm
So there's no way to cheat your way to the page by trying to guess what the page's filename is, and typing that in your browser. You gotta find it the hard way.
Clue #3 seems to suggest that the link is disguised
as an 88 x 31px button or similar, and I'm getting
"view the source code" vibes from Clue #5's "webmaster" hint but I could be completely wrong about that. That's kinda all I have at the moment.
In conclusion, Butterfree is some kind of link-hiding wizard and I have no idea where to even look anymore. Send help.