Waterdeep Monster Squad

From the introduction:

Monster Squad is a short scenario designed for a party of four characters of level 2 or 3. The characters are hired to protect a noble’s wilderness holdings. His holdings have been under attack by monsters that are not normally found in this region. In Act One, the characters have been hired and are traveling from Waterdeep to the noble’s walled compound on the edge of the Westwood forest. In Act Two, the characters defend the compound from a nighttime raid. In the final act, the characters go on the offensive to determine who is behind the attacks.