The Sugarthane's Sanctum

From the introduction: "Sweet-Tooth", a reclusive goblin mage also known as the "Sugarthane", has long held an uncanny favour with the local nobles based on a treaty forged long ago to stem goblinoid raids in the area. After a series of attacks, the protection of the Sugarthane’s boon seems to be failing. It is up to you to venture to his remote sanctum, where others fear goblin retribution, and determine why goblinoid incursions have resumed. A 3 to 5 hour adventure for 1st-4th level characters.