Madness of the Mouther

From publisher blurb: Mini Quests by Survive RPG offer compelling 2-6 page adventures that are great for a one-off session, convention play or for use as a side quest to your campaign. Mini-Quests is designed for any D20 fantasy system. In MADNESS OF THE MOUTHER an unexpected attack at the market leads the characters beneath the city sttreets. In the hidden halls of an abandoned thieves guild they find only death and the whispers of madness. What evil waits for them in the shadows? Will the characters surive?