The best place to start from is Trollheim. Get there by using the Trollheim teleport or make your way from Burthorpe. Northwest of the Trollheim ziggurat is the icy path to the north, the same path you had to take to recover the trollweiss flowers in Troll Romance. The north end of the path can hit you with cold damage. Enter the cave on the west side at the path's end. Ice trolls protect the cave so run through it with protect from melee on, exit at the other side and you emerge onto Trollweiss Mountain.

Reveal Ice troll Cave Map

A. Passage to Trollheim icy path B. Passage to Trollweiss Mountain

Unlocks "Lamistard's Labyrinth"

Head from that cave to the east and enter the cave there. The rock falls have rocks that can only be mined away if mined from several directions. The simple solution is to mine as much as you can from one way then find the way around and mine from the new direction until you've mined them clear.

Mine H from the south path. Mine through I and mine H from the east passage. Mine J through. Mine L from the west cave. Mine K through. Mine M from the west and then the north side. Finish L from the north side and then M from it's south side into the basement.

Reveal Lamistard's Maze Map

A. Passage to Trollweiss Mountain B. Stairs up to Ritual Building C. Stone tablet D. Granite tablet E. Slate tablet F. Shale tablet G. Notes A-M on bookshelf under stairs H thru M. Rock falls to be mined through

The tablets are Lamistard's journals. The notes on the shelf in the basement are made by Zemouregal on his fellow Mahjarrat. Pick them all up and the next time that you reach a bank, stow them there until the end of the quest.

Climb up the stairs and into the Ritual building.

Items to be picked up: Stone Tablet Granite Tablet Slate Tablet Shale Tablet Notes A - J Bank the items after exiting and keep until the end of the quest.

After walking up the stairs here, you see Arrav, the shell of the once hero of Varrock. He is not hostile at the moment, so he could be questioned. Unfortunately once he is disturbed, Arrav must obey Zemouregal's impulses on him. He will attack, even though he states that it's not his desire. As you fight, he haltingly reveals that you can find something to help the both of you behind the flame tapestry in the south room. Zemouregal calls on him and he quits the fight and teleports away.

Enter the room and you may find the flame tapestry Arrav mentioned on the west wall. When you search it, you find plans to Zemouregal's base and a key for it as well! The plans are quite complex but no doubt Ali the Wise would be able to help you decipher them. You strike out to return to him.

Upon returning, you show Ali the Wise what you found. Going over the plans, Ali notices something about the heart of Arrav. That seems to be what the once-hero was referring to. But then Ali details the base defense and security systems.

Most of the defenses trigger an alarm and release a gas that knocks out intruders. Then they are removed from the base, perhaps slightly damaged either by what they triggered or the guard that moved them out. While a cutscene of the base plays, Ali mentions: the spells to detect humans which trigger the alarm, the possible route through kitchen sewers with electrified floors, the zombie guard that patrol the halls, the code locked vault door (fail twice triggers the alarm), and the firey beams canvasing the room where the heart is kept (also alarm).

While all of that is a tall order, he guesses the real difficulty is how to take the heart without killing Arrav (unless we we're planning to end his suffering). Organs separated from the body sounds familiar, like a certain mummy we've met. Time to go have a chat with Senliten.

You can only complete this quest if Senliten's restoration is complete. (See the Missing my Mummy quest notes.) Head north and then east to the Ancient pyramid where Senliten's spirit resides. Enter, go through the imposing door and down the stairs. Cross the tile trap on the blue and green tiles. If there is not a way across, go up the stairs and back down until it changes.

Speaking to Senliten, you ask about a means to recover the heart of Arrav. She comments on the dark nature of the magics done but is able to suggest a means to help. She provides you with an empty canopic jar and says it must be filled with some sacred oil, 3 dwellberries, and a ring of life.

Add the items to the jar to create a full canopic jar.

Pour oil into the jar:

Oil in a canopic jar

Add berries (using 1 will add all three):

Oil and berries in a jar

Place the ring in the jar:

Full canopic jar

Upon returning he checks that you have solved the matter of the heart. Then he goes on to detail what you will need in general to overcome the obstacles he found in the plans earlier.

Thinking of the electrified sewers he mentions that you will need insulated protection for your feet. You will need to be able to have eyes somewhere to watch out for you, like when checking the halls patrolled by a zombie guard. At the last, you will no doubt need a grappling hook, as well as the crossbow to shoot it. After all, what good heist would be possible without those?

Slayers happen to know about insulated footwear. Combat with Killerwatts requires it. See a slayer master about Insulated boots if you don't already have a pair. As for an extra set of eyes, any summoned familiar can offer a set. However, most wont tell you what they see except for macaws. You'll need a macaw pouch to be your lookout. Also bring a crossbow and a grapple. If you dont have a grapple, you can smith one from a mithril bar, attach it to the head of a mithril bolt and tie a rope on it.

When you are inside the main part of the base in the trapped areas it's a good idea to keep up your hit points. You could be hit hard by the defenses, hard enough to kill you if you've let your points go too low.

In the Defender of Varrock quest you were able to delve about halfway into Zemouregal's base. The key you found will allow you to see most of the rest of it. If you recall you could go through several doors as you learned of the mahjarrat's plans for the city. There was a door on the north side of the base that was locked however ... that's where you are headed, where the Base key will give you access.

Whether you use a jewelry teleport or walk all the way, make your way to Zemouregal's base under the eastern wilderness chaos temple. You may wish to use pray against melee as you enter the base to save hits against the zombies in the halls. Move along the hallway until you reach the last door and go through.

Reveal Zemouregal's Base Map

A. Entrance from the eastern wilderness chaos altar B. Door for the Base key C. Kitchen drain connection D. Hallway drain connection E. Decoder strips on table F. Code key in chest G. Zemouregal's second notes on table H. Arrav's heart K. Level 85 Armoured zombies (several in each hall) L. Patrol zombies M. Human detection spell trap N. Electrified sewer trap O. Fire beam trap

Unlocks "The Heist"

You will head east and pass the main entry hall that you saw in Ali the Wise's fly-through. Use the door to the kitchen. In the south wall of the kitchen is a drain pipe that you can fit inside. Make sure that you're wearing the Insulated boots and enter the pipe. Run the length of the sewer until you find the other end with the drain opening. You might pause to inspect he cage nearby. It's another example of Professor Oddenstein finding security uses for electricity and creatures that generate it. Time to call your macaw familiar. Interact with it to use it's remote-view ability. It balks for a moment at being sent first into dangerous areas but once through and when the zombies have passed you crawl trough after it.

For the next part you need to move fast or you'll be waiting for when the patrol moves back to a safe distance. If the zombies get line of sight on you, your caught, beaten repeatedly, and moved out of the base.

You need some clues on defeating the locking mechanism on the vault. Get into the room to the south. Searching the west table you find some Decoder strips. The chest along the south wall has a Closed chest that contains a Code key. These two pieces are what you need for the door. Searching the east table will yield the other half of Zemouregal's notes on his fellow mahjarrat so grab that too. Read the Code key and take note of the four letters on it.

The next part has you sending some time in the hall. If your not sure the guard are going to be out of the way long enough you can go to the pipe, enter the sewer, and use the macaw to check the hall again. This will reset the timer (so to speak).

You head out to the door and if you try to open it you notice it's secured but there is a keypad to the north side. Operate the keypad to see the lock. You see your decoder strips under one set of controls next to a four digit numeric lock with its own buttons and a table of numbers. The code is a replacement cypher. Each strip is numbered one thru four, one strip for each digit in the combination. The strips have a window so that if placed over the correct row of the table (using the arrow buttons above the strips) they reveal the digit for that strip. What row do you place them on? That's where the Code key comes in.

Say that your Code key reads "ABCD." (I wonder how many of the the thousands of players got this. There should have been a few ... there's only 6561 possible codes.) So the first letter is "A," that means you place your "1" strip over the "A" row in the table. That reveals a number. You use the up-down arrow buttons under the code panel to pick the number and the left-right buttons enter that number and step to the slot left or right respectively. Do the same thing for each letter on the code key using each of the strips. Lucky people have four different letters in their key. That means that you can place every one of the strips on the table and read all the numbers off at once. (The author ... >me< ... had code "GGGH" ... I had to place strip "1," read it, move it away, place strip "2," read it, move strip, place "3" and "4" ... ok, rant over. ^^ Fear for those that had "DDDD" or the like. =P )

So, find the numbers for your key, enter them in, and when they're right you hear the locking mechanism unlatching. Open the door and get in before the patrol sees you. Look at the pretty flame lasers ... oh, but dont touch. Curiously, with all those barriers in the way, there's a pipe near the ceiling that a nimble person, a well prepared one, could use to just pass them by. Wow, Ali really is wise. Ready the crossbow and grapple the pipe. You crawl along the pipe and drop in front of Arrav's heart surrounded by the eldrich spell. You did bring the Full canopic jar, right? Grab the heart and you pop it right in the restorative jar. You can now teleport out with your prize! It's time to head back to the wise man.

After returning to Ali the wise you turn over the Heart to him. He plans to do studies into how it my be returned to Arrav to free him.

After the completion, you can discuss the journal and the notes with Ali to add to his information on the mahjarrat. They can be destroyed afterward.