use a rope on it and talk to that guy with you in the sewer
Chat with our AI personalities
just head down, into the sewer, now just follow the hallway north. Go to your left, and you will see a little glint where the key is, if you already don't see it.
Assuming that you used the bucket of water with the drain, the key should be here in the mud http://img502.imageshack.us/img502/6241/varrocksewers.jpg
moss giants are level 42.They can be found a=in the varrock sewer
There are some skeletons in the wilderness but rev's appear there so watch out there are also skeletons in the varrock sewer
East of the palace. Look for the red arrow sign on the minimap, which indicates an entrance to the underground.