From publisher blurb:
Web of the Sporeweaver is a Fifth Edition adventure for three to five characters of 3rd to 4th level and optimized for four characters with an average party level (APL) of 4. Embark on a perilous journey into the heart of a fungus-filled cavern, where the very essence of nature has been twisted and corrupted by the malevolent Sporeweaver Matriarch. As her corrupted minions threaten the surface world, the adventurers must navigate treacherous webs, confront nightmarish creatures, and unravel the dark secrets to end her sinister schemes before it spreads too far.
Background
Hidden deep within the ancient caverns beneath the Verdant Hills, the Sporeborn cultivated their lush, subterranean fungal domain. These sentient mushroom beings created a harmonious haven for a diverse array of flora and fauna, nurturing their hidden world. However, their peaceful existence was not to last.
A demented sorceress named Arachneia fled the Fey realm, pursued for her twisted experiments on living creatures. Desperate for power, she discovered the fungal caverns and the peaceful Sporeborn inhabitants. Initially fascinated by the Sporeborn's unique nature, her obsession grew, leading her to corrupt the cavern's water source and bend the Sporeborn to her malevolent will. As the self-proclaimed Sporeweaver Matriarch, she set her dark plans into motion.
The once-vibrant caverns transformed into a breeding ground for the Sporeweaver Matriarch's spider brood. The corrupted Sporeborn, now enslaved, tended to the growing arachnid family and their tainted fungal gardens. With each passing day, the Matriarch's sinister influence crept closer to the surface world.
The Sporeweaver Matriarch's corruption eventually spawned grotesque abominations that invaded the lands above. Elmsworth, a small settlement on the edge of the Verdant Hills near Luna Lake, suffered the first assault. The corrupted Sporeborn ransacked the town, abducting victims to feed the Matriarch's brood. Delighted by their offerings, the Sporeweaver Matriarch reveled in her triumph.
Now, the fate of the Sporeborn and the entire surface world hangs in the balance. Only those who dare to delve into the Sporeweaver's Cavern and confront the twisted web of darkness can hope to end her tyranny and liberate the Sporeborn from her venomous clutches.