LogFAQs > #975037997

To provide a little more detail depending on where you are at.

upon defeating the first boss and entering the dungeon, you should make your way down to b2 to find 2 keys, the treasure box key and the cell key.

Once you obtain both keys and open all the chests, you can head back to b1 to free a prisoner and obtain a tool to help you fully explore b3 The mask of eyes. On b3 you will be searching for 2 more keys, the Ivory key and the Marble key. You can use the tool near a statue to find a hidden doorway. You will also need to touch some of the statues to warp to other areas on the floor.