Gricks, worm-like monstrosities, historically dwelled in the deepest subterranean layers of Coia, beneath the crushing dark of the Iron Mountain. For centuries, they remained isolated, a forgotten species in the earth's core, unknown to the surface world.

However, a series of cataclysmic events disrupted their ancient existence. The Corruption of the Bukhara Spire Gateways and the recent awakening of Wild Magic caused immense seismic and magical disturbances, driving the Gricks upward from their deep habitat. This forced migration brought them into new, unfamiliar territories.

No longer content in the abyssal depths, Gricks began infesting the sewers of cities like Tetbury and the treacherous rocky passes of the Cockermouth Mountains. They are not inherently evil, but are driven by insatiable hunger and fierce territorial instincts, seeing everything from Goblins to unaware adventurers as mere sustenance. The ongoing disruption of the Weave near Ironhold has further caused some Gricks to exhibit strange mutations, such as slight resistance to magic or glowing veins of raw energy.

On 01 May 1248, the city of Tetbury faced a grave threat from these encroaching creatures. The Dragonbone Vanguard was hired by Tetbury's Lord to undertake "The Cleansing of the Tetbury Shitter," a mission to eradicate the planar energy mutated aberrations infesting the city's sewers. During this perilous operation, the Vanguard encountered numerous Gricks, including a formidable Alpha specimen.

The heroes thwarted a Spectator's mind magic and systematically felled various Gricks, significantly reducing their numbers in Tetbury's underbelly. They ultimately cornered and defeated a powerful Spirit Naga, the apparent orchestrator of the sewer's horrors. This decisive victory eradicated the immediate monstrous threat from Tetbury's sewers, solidified the Vanguard's reputation, and secured valuable resources for their ongoing quest.

Despite the localized success in Tetbury, Gricks continue to thrive in other areas, their presence a persistent danger. A lone Grick, its mutated form perhaps glowing faintly with raw energy, remains camouflaged and waiting. It lies in ambush within a rocky crevice or a dark sewer tunnel, patiently awaiting its next unsuspecting prey.