In the river town of Sawtooth, every solstice brings dread as the Wormfather demands a youth be sent into his mountain vault as tribute. The town elders comply, knowing the alternative is the release of the Murderworm upon their homes. When Elira, daughter of a respected farmer, is chosen by random lot, her father secretly begs the PCs to rescue her before she meets whatever fate awaits in the darkness. What begins as neighbors helping neighbors quickly spirals into something far more sinister.The journey takes the PCs from their homes in Sawtooth through treacherous wilderness to the mountain vault where the Wormfather conducts his twisted rituals. Inside a terrible revelation awaits them and the PCs must make an impossible choice: destroy the Wormfather and risk unleashing something that could destroy their village, or become complicit in a cycle of sacrifice that preserves a terrible status quo.Vault of the Murderworm is a 0-level funnel adventure for Dungeon Crawl Classics (DCC) RPG.