|Written by||Gehn, later Catherine|
|Locations of interest|
|Journal-||Riven (game)/Catherine's journal|
|First appearance||Riven (game)|
Tay also Moiety Age or Rebel Age, is an age originally written by Gehn, during his attempts to escape his "prison" on Riven, but proved, much like his other ages, to be unstable. He cast it into the fire to burn, but it was salvaged by the Moiety.
All that can be seen of Tay is a deep valley occupied by a vast lake surrounded by encircling mountains. Around the walls there is at least one cave which is the link-in point, and also has a linking book to Riven. The Moiety had built an idol of Gehn, which is superstitiously pinned with Rivenese daggers.
The main feature of the Age is a massive tree by the lake, on which a big hive-like structure was built. The "hive" has inside several rooms where the Moiety dwell.
While Katran stayed with the Moiety in their caves as their leader, they told her about the book, which, using her incredible writing ability, she was able to rewrite it as a stable age to house the Moiety safely from Gehn.
As all linking books on Riven, its linking panel was unusuable. In order to link to Tay, the Moiety had to discover the combination that operate Gehn's domes, and steal a Riven linking book from Gehn as a means to return. Catherine made sure to fix the Linking panel by a kind of special book-powering crystals.
Once the Moietior-Esk gave word that Gehn powered to use the domes, Catherine linked to the Moiety Age to locate the substance, which she refined or adapted it to form book windows, that would heal the books. Thus she was able to link back to Riven, with more book windows. Soon Catherine managed to fulfill the "prophecies" and all the Moiety were led to the new Age.
When visiting the age, the Stranger linked to a cave. He was captured by two Moiety guards and brought to a closed quarters. There Nelah provided him with the Trap Book they had stolen from him, as well as a linking book back to Riven.