History
The Sirrush is a mythical dragon/chimera-like beast with hind legs resembling the talons of an eagle, feline forelegs, a snake-like tongue, and a horned dragon-like head. This beast originates from Babylon.
While wandering through the desert, Darwin had a dream/illusion/future prediction where he came across a damsel being pursued by a Sirrush. Darwin was able to kill the beast, but later learned it belonged to Sheriff Tier, the Beast of the Earth planning to bring about the apocalypse.[1]