I'm stuck and don't know how to go on...
Got one golden coin, a silver coin, 4 bronze coins (fed the gold one to the hungry guy, but he wants more), a gem (fed to the 3 colored thing, but it's not enough), managed to clean underground levels 4 and 5, where I finally found 2 skeleton keys. Unfortunately after opening the skeleton doors I just came back upwards.
In Level 4 there's still a closed gate with a green lock, but there's no key left (the gate is near the an altar which activates a teleport with the right item).
In the priest level there's still 2 locked doors which need a bronze/rusty/brown key, but I got none left.
Searched everyting twice, but can't find any more secret passages, no enemies, no items, nothing. Tried putting torches everywhere. Any hint what to do?