Sewers

The 4 Sewers in the Second City are a major site during the Second City Adventures. The sewers are locked until you gather the keys to unlock them during the adventures.

The First Sewer is opened by the Small Silver Key

The Second Sewer is opened by the Tall Key

The Third Sewer is opened by the Grande Key

The Fourth Sewer is opened by the Mayor on Day 19(FBHW) / 20(HW1/HW2) of the Second City Adventures

You can find several nifty prizes, fight random NPC battles, and continue your adventure inside the sewers. The mini-map is normally covered, unless you find the map for that level (incidentally, on that level).

Moving in the sewers costs 2T, unless you have won the Gas Mask from the Bowling Alley then it costs 1T.

Some unique items and objects can be found inside the sewers. The Mirror Shard can be found inside Sewer 2. The Rats#Space Rat can be found in Sewer 4.