Shorah everyone,
I took the time to write you a complete walkthrough for the 4th & last part:
Elodea's Schatzkammern 
Here it goes...
START
You arrived in Schatzkammern at the top of a huge shaft made of rooms on top of each others and linked by ladders.
The first thing that you should see is that the door leading outside is now close and the mantrap is now lifted up (the opposite of when you were in Elodea's Mainland). On the back wall, you’ll see a bas-relief of the Brave Soldier...
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Notice the little note on its side stating: “Follow Me”
Go 2 ladders down to a room with the link cloth and the close door.
Warning: Don't touch the link cloth on the wall (Online only. Only applies to your first visit)
For all, who do not want to see spoiler.
STOP at this point
The way to cloth 1
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Open the door, go to the bottom of the shaft (Notice that female avatars tend to descend the ladders on their right half). As soon as you exit the shaft and enter the cavern, turn right and find the cloth hidden between the hill & the shaft.
The way to cloth 2
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Exit that area by following the small carved tunnel. But before entering the said tunnel, turn around, you’ll see a huge bas-relief of the Brave Soldier. After the tunnel, you’ll be in a clearing where some excavation works have been done. The only way out is going counter-clockwise. You’ll follow a small narrow passage all paved. You’ll exit in a much larger area circling around the one you just exited.
On your immediate right, you’ll see a small opening with an arc carved in rock, this way leads to long tunnels. It's nice if you are the curious type. You'll see emerald, huge bats, and ultimately the lava stream. If you go towards the stream make cautious moves as the floor is not complete down there... All those tunnels there are dead ends.
Back in the larger area (or if you didn't leave it...), you’ll also see 3 huge yellow & light grey arches plus an additional one a little bit farther, let's call it the 4th arch (after the 2nd arch). You’ll see huge feathers & if you explore, you’ll find a nest with eggs (up the hill near the feathers). There’s an angry mother bird flying around, I wouldn’t mess with her yet to be born babies. Judging by the size of the eggs & the mother, you are the right size for a delightful meal...
There are also 2 books. The first book is a welcoming book and you’ll find inside a message to make sure you didn’t skip any steps so far in your journey. The second book is to be used only if you skip some steps in your journey, you’ll go back to the mainland.
Beyond the first arch, you will come across what should have been a passage over the lava stream. If you look closely, you’ll see a hatchet on the right side post, someone cut the rope bridge… Go back. Beyond the second arch, there’s a fork. On the right side, you'll get near the lava stream down below. On the left side, you see the 4th arch described earlier, we will get there later on. First, go right and as you reach the edge of the cliff, you'll see a staircase, follow the carved staircase but stop right before the first left turn. Look ahead on the cliff (on the same side of the lava stream as you), you’ll see the cloth 2 on a promontory.
Go back up and follow the left path instead, go under the 4th arch and get close to the cliff. Locate the position of the cloth 2 and let you fall gently on the little rock promontory. Touch the cloth 2.
The ways to cloth 3
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There’s no much choice now than falling again gently on the staircase below. You can continue your descent and visit the small room at the bottom and after climb back the staircase, go under the 2nd arch and go to your right to the 3rd arch. Keep going and go under the Emerald portal. You’ll be in a huge location with an inner lake (swimmable), an island with a clock, the Sun portal making the division between Schatzkammern & Unterwelt. There’s a garden at the other end, a provision room (if you are hungry) and a huge bas-relief of the Brave Soldier. All this location is pure exploration, when you are done follow the bas-relief. You’ll be in a narrow canyon with a crypt on your right (you can go but it’s quite creepy seeing all those cuffins) and the way out on your left. At the far left, you’ll find another room there, maybe some sort of ritual room. There’s a hole right in the middle located right above the lava stream and there are Dn’i writings on the walls. A huge portion on the left path is open with the lava stream visible down below. If you look on the other side of the stream, you’ll see a cloth, that’s the cloth 3. It’s easier to spot than to reach it.
With the lava stream on your left side, look high up, you’ll see a wooden suspended bridge and a green dome, you must reach this dome first. Pan down the hill and look near the stream, you see 3 huge round rocks. There’s a hidden ladder. Follow it and enter the passageway. A good indication that you are on the right path is the 2 bas-reliefs of the Brave Soldier visible just before taking the spiralled staircase up to reach the green dome.
On top of the hill, you will have a splendid view of the whole cavern. It’s time to cross the wooden suspended bridge. You’ll notice the bad state of the wooden planks. There are many holes so you must be careful crossing to the other side.
Jump over the last hole to reach the other side.
There are 2 known ways to reach it both are not easy
The “Shorter Way”
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Do not go any further. Instead back up slowly to fall down, all the way down to reach a little rocky path at the level of the lava stream, you need guts at this point. Do not push yourself, fall gently, the landing zone is tiny.
Once in one piece down there, turn around you’ll see a little islet in the stream with a button. Go there, don’t touch the button yet. Turn toward the whark skeleton first. You see a rocky path going far. Once you’ll have hit the button, a part of the cliff will move inward revealing a hidden staircase. You must make your way there before the cliff go back to its initial state. Once on the other side, don’t go too quickly, you’ll be on a little promontory with the cloth 3. Touch it then keep going forward following the stream. The blue button there doesn’t work.
The “Longer Way”
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Climb to the top of the hill ahead, you’ll come across a structure with a fence and a sign “Out of Order”. There’s nothing you can do for now. Follow the path on your left and follow the staircase to reach the canyon ground down below. Once at the bottom of the canyon, you’ll see a huge arch on your left (for now don’t cross it), turn right and follow the passage. On the staircase wall, you’ll see a nice blue door with a blue button on its side. Open the door and follow the narrow corridor. You’ll find at the other end an elevator with a blue button. Touch the button and enjoy the ride. Once at the destination, exit the elevator (walk-jump) unless you want to go back down. Once exited from the elevator, turn around and read the warning sign. It tells you that you did a one-way trip. No worries to have, open the blue door at the back and follow the long steep spiralled tunnel. Touch the button at the bottom to open a hidden door and go forward (be careful not to fall in the lava stream, the floor has holes). The left path will ultimately make you reach a dead end. Take the right path to exit near the lava stream. Reach the little islet with a button near the whark skeleton.
Go there, don’t touch the button yet. Turn toward the whark skeleton first. You see a rocky path going far. Once you’ll have hit the button, a part of the cliff will move inward revealing a hidden staircase. You must make your way there before the cliff go back to its initial state. Once on the other side, don’t go too quickly, you’ll be on a little promontory with the cloth 3. Touch the cloth then keep going forward following the stream. The blue button there doesn’t work.
The way to cloth 4
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Looking on your far right where the path ends, you’ll see a long carved ladder on the hill side. Follow the ladder to the top. Once at the top, look on your right, you’ll see a window, there’s a room there, go on the other side and enter inside. You’ll see a bed, a bible, a carpet made of bear skin, 2 tables, a library, and most importantly a map of the area (in much cleaner shape than the one found in Elodea mainland). As the story told, they were 7 treasure rooms. They were all raided so you won’t find much treasures there anymore. The green on the map represents the green dome, the blue is for the lake, they grey is for the shaft and the paved ground around its base. If you remember well the story, the treasures were transferred somewhere far more protected from the views so that’s why the actual treasure rooms are not represented on the map…
See the map, I have put some additional helpful informations.
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[img]http://img15.hostingpics.net/pics/400880Mapwithaddinfos.png[/img]
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Exit the room and walk towards the 1st room, go under the arch, pass the staircases on your left, keep going. Stop just before reaching the entrance for the 2nd room near the blue door. Turn to your left and you’ll see a little opening behind the canyon lamppost. Go behind that post and find the cloth 4.
The way to cloth 5
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Keep going down the canyon, pass by the 2nd room, go under a new arch and stop just before the dark wooden bridge. Look at your right, you’ll see a little wood plank. Cross it carefully and follow the path down to reach the 3rd room. It will be almost empty… search for the hidden cloth 5, touch it and go back up. Cross the wood plank again.
The way to cloth 6
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Go across the dark wooden bridge (you are now on the other side of what would have been a bridge across the lava stream if the rope wouldn’t have been cut with the hatchet). Keep following the path on your left. You’ll see entrances for the 4th and 5th rooms, just keep following the narrow path on the right up until the entrance for the 6th room. Look on your right, you’ll see a bas-relief crunched and divided in 2 pieces lying under a pile of rocks. Jump over the smallest rock to go inside the narrowest passage of them all (I hope you are not claustrophobic). On the other side of this narrow passage, you’ll be inside a long tunnel then a short canyon ending with an opening and a staircase.
Follow the staircase and stop at the first landing. There are 3 staircases, let’s call them, the right one, the middle one, & the left one. The right one leads to the 7th room located right behind the huge blue door. The left one ends on a bas-relief of the Brave Soldier. That must be the right path but it looks like a dead-end. For now, climb back to the landing and follow the middle one instead. You’ll be back on the lava stream level. It looks like we have to make our way by jumping from one rock to the other one.
Maybe you should pay a visit to the nice room with a red carpet first. Jump over the stream and reach that room. Enter in it carefully… Ahhh you fell into a booby trap! You are inside a prison cell. There are human bones on the ground (maybe another beast too because one of them is huge…). You’ll find the cloth 6 on the side wall. Make cautious moves because there’s an open manhole leading to the lava stream.
The way to cloth 7
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Inspect the room and find the exit. Even if the path ahead seems steeper than steep it’s actually not slippery go up and reach the lava stream level. Now you have no choice but jumping from one rock to the other. If you go to your right, you’ll go back on your footsteps. But we still miss the cloth 7. It might be a good idea to go left even if you don’t see the ultimate goal for now. At the end of that dangerous path, there’s a room not visited yet.
Jump from rock to rock and reach that room. Enter it. You’ll find the cloth 7 on the side wall. If you notice well, you are on the other side of the close door in Tunnelgang. When you played earlier in Tunnelgang, you came across that room and you might have wondered how to reach that cloth on the other side. You have now your answer.
The way to the Treasure Rooms
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Go back on your footsteps to the last bas-relief saw (Do not enter the prison cell though, it's a dead-end.) Keep jumping from rock to rock until you reach the entrance to the staircases. Inspect carefully the “bas-relief dead-end” and find the rock that will trigger the secret opening. Enter the nicely decorated room with a chest full of gold. You must definitely be on the right track. Find the blue button. Touch it. Note that this button only works after all the 7 clothes have been touched. The curtain will raise up revealing a new room, a bedroom with a lot of riches. Is that it? Maybe you should inspect all the corners of that room, there might be more to discover than just that.
Final Puzzle
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At the end of the partly hidden corridor, you’ll find pictures depicting known & unknown ages taken from known & unknown digital games or artworks.
Remember the last key that you found in Unterwelt, it was a huge rotating green globe with the word “Myst” written on one side (forget the D'ni numerals on the other side).
The goal here is to find all the pictures depicting a game of the Myst series.
The first one is from Revelation which is the 4th game in the series.
The fourth one is from Exile which is the 3rd game in the series.
The sixth one is from Riven which is the 2nd game in the series.
The tenth one is from Myst which is the 1st game in the series.
The second, third, fifth, seventh, eighth, ninth, eleventh, & twelfth ones are not from a game in the series.
You have now the sequence: Myst, Riven, Exile, & Revelation.
End words
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After you'll have touched the 4 pictures in the right order, the door at the end of the corridor will open up and will reveal the treasure rooms!!!
Don’t take home all the treasures... At least, leave some gold coins for the other explorers coming after you… :D
I went back to the starting point & played 'nicely' (for once!!!) and note everything down on Word.