I like Mulmaster. The city has many good hooks and evocative elements like Cloaks, Hawks, Blades. This module is a good starting place in Mulmaster with a good hook and simple but enjoyable plot.

There are Gators in the Sewers!!! Well not really gators, but a good investigation killing mission. Your players will have fun.

Foulness Beneath Mulmaster is a simple adventure with a good hook. The adventure hook is there is news of a monster being discovered in the pipes which will then lead to panic and people wanting adventurer's to investigate or go down into the sewers to get rid of threats. The adventurer's will then meet with a strange creature and the creature is friendly and will need the help of the adventurer's to avenge it's mates death. The adventurer's then will meet with another party of travelers in the tunnels and will then proceed to head on to defeat cultists and other threats. There is a bit of roleplay that can be had when interacting with the strange creature and the other party and a bit of combat from encounters in the sewers. Overall, its a good adventure and well rounded especially for new players to Dungeons & Dragons.

This was my favorite season 2 adventure.

Spoilers:

The ending battle is really intricate and fun to play out, the flumps are the best to RP... hands down hilarious!