Board Thread:Questions and Answers/@comment-184.166.92.200-20130113203051/@comment-70.24.207.206-20130114231514

This mod is modeled off of the game Myst, and in the game if you do not bring a linking book into the alternate age you are trapped.

Create a linking book before entering and setting it up in the age on a bookstand or lecturn will allow you to enter and leave the alternate age of your own free will.

If you didn't make a book, you need an op to teleport you, or like I did, you mine the world, near bedrock I found a portal that looked like the end portal, but different, it brought me back to the overworld. I do not know how rare these portals are.