Guardian of Forever

The Guardian of Forever is a special encounter in Fallout 2. It's a big time portal which lets the Chosen one travel back in time before the time of Fallout 1 to break the water chip in Vault 13.

In the Vault, you can browse only the command center of the Vault 13. Although linear, it provides palpable benefits to the player character. Loots includes Mentats and the unique Solar Scorcher.

Warning ! Remember to get the loots, because once part, you will no longer come back !

Trivial
It's a reference to the Star Trek episode The City on the Edge of Forever.