So just to check, I went through the first assessment and it’s mostly still functioning. You should get a congratulations thing. There will be a link to the book of briars site about chanting some words, that’s where the the link is broken.
The second one is also mostly functioning. If you get it right, you should be redirected to the book of briars site. Unfortunately, the link beyond that is broken. You won’t get a congratulations on this one, but if you get it wrong, you’ll be redirected to the second assessment rather than to the book of briars.
Edit: I don’t know how anyone would be able to complete the second assessment, though. You need to have access to a 3d puzzle that was hosted on the book of briars site, and it’s gone now. You could technically still do it by assembling the pieces into a paper structure, like so, but it would be really complicated to navigate it… 