On the Second floor, you will be presented with a teleportation maze. If you step into the wrong teleporter, you will be returned to the beginning. On the map, I have marked the teleporter that you want to take next. The only treasure to worry about is the Gauntlet in the northeastern chamber. Make sure to grab this item, as it casts Thundara when used in battle. At the end of the maze, you will find a staircase leading to the third floor.
There is no maze on the third floor, and there are several important items to be found. Make sure to grab the Heal Staff, as this item casts Healra in battle. Pretty soon, you won’t have to use MP anymore! I recommend using the manual sort option on the item screen to move the Heal Staff to the top of the list. This way you can use it in battle without wasting time scrolling all over the place.
When you get to the end of the hall, you will find a treasure chest that is guarded by several Dragon Zombies. They shouldn’t be a problem. As a matter of fact, since they give good EXP, I would recommend fighting them a couple of times to increase your levels. After grabbing the Rat’s Tail from the treasure chest, walk onto the throne. You will be transported back to the entrance.