Missing, Presumed Death

Missing, Presumed Death is a quest that features Death, who has gone missing, and the Menaphite god of the dead, Icthlarin, who is attempting to take over his role until he is found. The quest starts in Silvarea, west of Paterdomus, where some monks have been murdered, their souls unable to pass on due to Death's disappearance.

It also involves the Mahjarrat Sliske, revealing how he obtained the Staff of Armadyl from the Dragonkin prior to the assassination of Guthix.

Official description
When a group of Saradominist monks are slaughtered by an unknown assailant you are asked by the only survivor - a monk who is extremely traumatised - to find the killer and bring them to justice. But there's more to this puzzle than meets the eye, starting with the souls of the dead monks being trapped in their bodies...

Murders in Silvarea
To start the quest, speak to Brother Samwell in the mountain pass of Silvarea, located west of Paterdomus and east of Varrock. Players will calm him down, and he will hand the investigation notebook to the player.

Investigate the slaughtered monks, tree with an arrow stuck in it and the nearby plant to find all the core clues. Searching a plant nearby will yield a lost ring. Talk to the south west slaughtered monk to gain an additional clue. Return to Brother Samwell.

He will then say find a witness, Go up the hill and talk to the odd old man. In order to get him to talk, persuade him three times, then threaten him. Return to Brother Samwell.

Next, follow the crystals to the east, and search the dead elf to find a core clue on her hands and an additional clue by listening to her soul. Also investigate the plant to find a necklace, the clothing on the fence, and the bench to find a letter. Talk to Blaze at the beacon by threatening him twice then persuading him for more information, then return back to Brother Samwell.

Go to the Wizard's Tower south of Draynor and talk to Wizard Valina. Show her the clues, then ask her about elves, Saradominist wizards and teleportation. Accuse her of covering up for wizards for a more thorough explanation. She will claim that it is neither elves or wizards who did the crime.

Return to Brother Samwell and tell him what was learned. Icthlarin will communicate with the player telepathically and appear. Go through all his dialogue options to learn about Death's disappearance and their work. At this point, 4 wights will attack. Icthlarin can weaken them but he cannot finish them off.

After defeating the wights, the last one you kill will drop an invitation box. The box, left by the killer Sliske, will invite Icthlarin to attend his ascension. Ichthlarin will debate going but decides to do so after dealing with the dead monks. Open the invitation box to be transported to the Empyrean Citadel.

The Empyrean Citadel
Upon arriving at the citadel, there will be representatives of the gods standing outside a set of doors guarded by the Barrows Brothers. Commander Zilyana will be arguing with Ilfeen over the murders. Telling them the truth will result in Ilfeen trying to make peace but Zilyana rejecting it. Talk to Icthlarin to proceed.

The Maze
Enter the door to the west then head north to the window to witness a cutscene of Saradomin, Zamorak, Bandos and Armadyl arguing. It is unknown if Zaros is in attendance, as there is an unexaminable purple smoke/hue floating on a Zarosian pedestal that does not speak or interact with anyone in any way, and nobody acknowledges it.

Icthlarin enters and tries to unite them to no avail. Once the cutscene is over head round the crates and out the southern window, jumping over the gap, running over the planks, jumping down the rocks then up the rocks to enter the western window. Climb over an obstacle then head to the northern door to proceed.

Attack of the Wights
Enter the northern room to do battle with 7 wights in waves of 1 wight, then 2 ranger wights, then 4 wight footsoldiers. In order to damage the wights pull the levers to reveal light then lure the wights into the light. Once all the waves are dead go to the window to view a cutscene of the gods discussing why they are here, then go through the door to the north.

Shadow Caster Puzzle
In this section, you will encounter a room with two masks on a viewing panel. Clicking on the panel will yield an interface in which you need to rotate the shadow casters to project an image on the floor. Rotate the bottom-left machine once, the top-left one twice, the top-right one three times and the bottom-right machine once. This will form the correct shape from the shadows. Go to the window to view a cutscene of Sliske's arrival.

Riddle Puzzle
After solving the last riddle, you will receive an invitation to Sliske's ascension. Go to the window to see Sliske summon Death and the Dragonkin Strisath. Leave by the southern door and jump off the roof.

On the edge of war
Speak to one of the Barrows brothers to get inside the main room. Once inside Sliske announces a contest: whoever kills the most gods will be awarded the Stone of Jas. After a lot of commotion to trust Sliske or not, he sets the dragonkin loose (which goes on a rampage) and throws the key to Death's cage at you. Icthlarin will put up a shield to protect you from the dragonkin's attacks while you get to Death. To get to Death, head west and stamp out the flames until you get to his cage. Free him and return to Icthlarin where a cutscene will play and Death will teleport everybody remaining to safety.

Note: If you or Icthlarin, after his shield fails, get hit by the Dragonkin's attack you must start the whole sequence again.

Rewards

 * 2 Quest points
 * 1500 Combat experience lamp
 * 1000 Agility experience lamp
 * 500 Prayer experience lamp
 * Mask of Sliske, Light/Mask of Sliske, Shadow cosmetic headgears.
 * Book of the Underworld
 * Invitation box, used to teleport to the Empyrean Citadel.
 * 2 spins on the Squeal of Fortune

Additional rewards
After completion of the quest, one can return to the Empyrean Citadel and talk to the statue to gain extra rewards if you meet the requirements. These rewards are:
 * 50,000 Thieving experience lamp (requires 75 Thieving; not able to use temporary skill boosts)
 * 50,000 Constitution experience lamp (requires 75 Constitution)
 * 30,000 experience lamp (usable on any skill above 75)
 * 30 Barrows amulets.
 * Two new death animations.

Music unlocked

 * Undying
 * Empyrean Citadel
 * Cliffhanger
 * Dying Light
 * Faces Obscura
 * Free Death

Trivia

 * The quest's title is a pun on the classification "missing, presumed dead" used for people who have been missing and are most likely to have died.
 * It is possible that Zaros was present in his spirit form on the event of Sliske's Ascension. A purple aura could be seen over his podium, whereas for other Gods who were not present such as Seren, Marimbo and obviously Guthix, no such aura appeared.
 * This quest marks the first time the gods Armadyl and Bandos are seen.
 * If the player sides with Zaros in the Citadel meeting room, a dialogue box appears that states the player feels a strange presence around them.
 * If you have released them, Kharshai and Hazeel will be present at the Citadel.
 * The outcome from The World Wakes, along with who you sided in the Battle of Lumbridge are included in this quest.You'll also have more options of dialogue if you've completed a number of other quests, such as Regicide.
 * The talking masks in the first puzzle room will occasionally say things that breaks the fourth wall, such as referring the puzzle as novice difficulty or accusing the player of using a walkthrough, amongst others.
 * Relomia, the Emissary of Sliske, can be seen on the walkway to the second puzzle room on one of the floating rocks in the distance. She seems to have arrived to see Sliske.
 * Near the Memorial Statue there is storage crate. Investigating this crate reveals that it contains several copies of a list. The list mentions the gods invited to the ascension, and states that Death and the player are mischief-makers.
 * Upon completion of the quest the Adventure's Log states: I saved Death from Sliske, after hearing him announce that he would give the Stone of Jas to the person that could kill the most gods.
 * After the quest, Azzanadra has new dialogue options in the Temple at Senntisten, and has opinions on your choice of allegiance during the quest.