Cenarion Scout Landion

Cenarion Scout Landion is a night elf found in Hive'Regal in southern Silithus. Enter the hive from the most southwest entrance, ignoring the round caves along the way. Scout Landion occasionally stealths, but is still visible in the large cave with 4 points, just before the largest round cave.

Quotes
Soon we shall rid Azeroth of the silithids' abominable presence. Their potential for destruction is much greater than what you've seen firsthand,. Greater, darker powers are behind their activities.

Quests
Needed to be spoken with in Hive'Regal Scout Report (quest).

It takes a bit of practice to be this close to the silithid and go unnoticed. I don't recommend trying it if you can avoid it.