Stares, Sounds, and Smells

There were three siblings created by the Void in the beginning. The Great Watcher, the Listener King, and the Master Sniffer. The Listener King is the youngest, ruling over the Overworld, lord of land and nature, but he's been banished to the Void for tens of thousands of years.
The Master Sniffer is the middle child, holding dominion over the Nether, water, and fire, although them and the rest of the Sniffers have seemingly vanished. The Great Watcher is the oldest of the Void's children, existing in the End dimension; the ruler of the sky.
Watcher, their original name, is seen as the most perfect and pure deity by the watchers, but they have secrets that would appall their subjects. They have a lesser form among the watchers named Xelqua, and they've had vessels like him for as long as the watchers have existed. This vessel existed as a way to spy in the Overworld where their radius of sight does not reach. A bird hybrid named Grian.
To have successful espionage, they need a server, and as much as they don't want to accept it, they've grown feelings for the residents of their server, so when some of the Hermits are kidnapped by the watchers to be sacrificed in the name of the Convex, they decide to get involved even if it means giving up their secret identity.