If you try to go to the shrine up in the north, you'll find that you wont be able to get through.
A boy named Abel took the key for a game of treasure hunting. You'll have to get out and travel west from the shrine, till you get to a dungeon.

When you enter, you'll meet Abel. He'll tell you what happend, so now you'll have to go and get through this next dungeon.

There are a lot of secrets in this dungeon.

Just a word of warning, when you get to here, better fill up your health, because once you take one treasure, the spikes will lock you in, and you'll have to kill about 8 enemies (all that are trapped with you) to lower the spikes. Don't use reset because you'll lose these cool items.

This shows one of many secret; the door you see leads to one of the water pumps

To lower the water, go here

Anyway, you'll eventully get up to the boss that holds the key. Not hard...He has 500 HP.

You'll get the shrine key. Exit.

When you get back, you'll open the door, and someone will be very grateful. Be sure to visit her in Tanbel.