Here when you enter Zozo talk to the carrier pigeon and it will fly off,
follow that bird to the top of this town. But first you can't get through
since the door at the top is locked, talk to the walking merchant in this
town and he will sell you the Rust-Rid for 1000 GP to open the door, do so
and continue through to the top of the pub and onto Mt.Zozo.
