Important! Please read the announcement at http://myst.dustbird.net/uru-account.htm
Also! Please read the retirement announcement at http://myst.dustbird.net/uru-retirement.htm
Precambrian
From UamWiki
(The full list of Ages: List of Ages)
Author
Ametist and Metabasalt
Walkthrough
(to read the spoiler, select it with your mouse or press "Ctrl+A")
Just explore! (Check out the spheres(clams?) under the water near the link-in point.)