water and climb up along the west wall. Move to the left and drop down at this higher platform. Make your way through the waterway and if you look through the blocked off waterway to the left, you will find a boatman coin. Get across to the other side and head back north through the waterway at the northwest part of the room. Run ahead and step on this same switch like we did earlier and Karn will be able to return back to the Guardian room. The door will close behind you so you will have to head back through the waterway. Make an immediate right and go through another waterway to get back to the main chamber of the dungeon. Karn will place the second heart stone into the guardian. Furthermore, now that the water is flowing, the lava is no longer filling this area. Follow Karn to the south end of the room and he'll toss you over the nearby gate. Pull the lever to lower the gate. Go back to the Guardian room and activate the Maker Custodian. Return to the adjacent room and smack away all the corruption crystals. Travel southward and you'll see the final heart stone. Clear the area of corruption and drop the Maker Custodian into the hole in the center of the room. With the nearby gate lowered, climb the wall to the west. Use the Death Grip on the hoop to swing over to a wooden post. Jump over to