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.

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.

Investigate the monks, tree with an arrow stuck in it and the nearby plant to find all the core clues.

He will then say find a witness, Go up the hill and talk to the Odd Old Man. Retrieve the information and return to Brother Samwell.

Next, follow the crystals to the east, and search the dead elf. Also investigate the plant, the clothing on the fence, and the bench. Talk to Blaze at the beacon for more information, and return back to Brother Samwell.

Riddle Puzzle
I can build castles that melt in the rain but I trickle down as the seconds drain - Sand

I can fall from the sky, but I cannot climb higher, I spring with no legs I run but don't tire - Water

Glass can't create me, but stone and steel do, I'm made by the sun, but out of its view, I can be tiny, and also be vast in the shape of my maker, like a spell I am cast - Shadow

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. The image should be the: "happy mask" as seen on the viewing panel- this mask is also on the eastern wall of the chamber.

Rewards

 * 2 Quest points
 * 1500 Combat experience lamp
 * 1000 Agility experience lamp
 * 500 Prayer experience lamp
 * Book of the Underworld
 * Invitation box, used to teleport to the Empyrean Citadel.
 * 2 [[File:Spin ticket.png]] 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)
 * 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

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.
 * In the first of Sliske's puzzles, his mask will sometimes say you're using a walkthrough if you click on the view from window option right as you enter the room.