All-Knowing Vortigaunt

The All-Knowing Vortigaunt is an Easter Egg Vortigaunt from Half-Life 2. Near the end of the "Water Hazard" chapter, Freeman must destroy a hunter-chopper that has been following his trail. After this is completed, a large, sliding metal gate must be opened to proceed further. After going through the gate, on the left there are two visible drainage tunnels set into the face of the rock. The grate on the left tunnel is shown to be peeled back. Inside this tunnel, beyond a stretch of radioactive waste is a large, underground cavern, home to a character referred to by fans as "The All-Knowing" (or "Sore Throat") Vortigaunt. While the waste is damaging, there is a large store of healing items near the Vortigaunt, and it is possible to minimize damage by sprinting across it.

The Vortigaunt in question is shown roasting a Fast Headcrab over an open fire while chanting, eventually pausing to hack and wheeze for a moment. By talking to the Vortigaunt, the player may hear many cryptic statements pertaining to the Black Mesa Incident, Xen, the G-Man, the Nihilanth, and Gordon's deep connection to the Vortigaunts, among other topics. However, given enough prompting by the player, all of the information imparted by the "All-Knowing Vortigaunt" is also spoken by other Vortigaunts encountered in Half-Life 2.

Trivia

 * The Orange Box achievement "Vorticough" is worth 13 gamerpoints. If one is to get the "Two Points" achievement, then it evens out the gamer score.
 * This is in the All-Knowing Vortigaunt cave that the first Fast Headcrab is seen.
 * The Vortigaunt mentions about you (the player) looking through gordons eyes