I reach the other scientists they figure out that, in order to use the teleporter, it has to be calibrated via an other machine on Xen. Guess who's going to Xen to do this.

As I arrive the Surface, I realise that the goverment sent killer droids to contain the situation. I also learn that there is an old teleporter which I and some scientists could use to escape Black Mesa.

A regular working day in Barney Calhoun's life. That is until the fabric of space time rips open and aliens start to overrun the installation.

I dismantle GlaDOS.

I finish testing but the promised cake is, schockingly, a lie. I escape behind the backdrop before I get incinerated.

I begin Portal and pass the first 11 test chambers. On the Way I find both parts of the Portal Gun and weird scribblings on a wall, left there by my "predecessor"(?).

Typhon is the most powerful adversary I have met. He is seemingly undefeatable. But since the Well of Rebirth grants me immortality I lock him into an eternal battle atop of the Mount Olympus.

I reach Mount Olympus and confront Typhon...

Deep inside Mount Wusao, trapped in halls of obsidian, is Typhon. Waiting to take revenge on the gods. As I arrive I witness the Telkine freeing him and he uses a portal to enter the Olymp. I defeat the Telkine and follow him.

Upon arriving at the Jade Palace, the Yellow Emperor informs me, that the Telkine who has stolen the sickel will probably use it to free the titan Typhon who was trapped under the mountain of Wusao by the gods. Once freed, he would go to the Olymp to take revenge on the gods who banned him there. I have t stop the Telkine before he succeeds in freeing the titan.