Instruction manual.png
This quest has a quick guide found here.
It briefly summarises the steps needed to complete the quest.
Old School RuneScape uses the British convention for floor numbering: Ground floor, first floor, etc.


Start point The Sinclair Mansion, north along the path between Seers' Village and Camelot. Talk to one of the guards around the mansion. The Sinclair Mansion, north along the path between Seers' Village and Camelot. Talk to one of the guards around the mansion.
Official difficulty Novice
Description Old man Sinclair has been found dead in his mansion! Unfortunately, the local authorities are having some trouble figuring out who's the guilty party. Maybe the unbiased eye of a passing adventurer will be of help.
Length Short
Requirements None
Items required


Enemies to defeat None


Murder Mystery is one of the most unique Link to quests quests in RuneScape, because the outcome of the quest is random, so there is a reasonable amount of detective work you have to do on your own. However, there are plenty of clues to be found as to who the culprit is.

Starting out

The start point of the quest.

Starting the quest.

First, talk to the Chat head image of Guard (Sinclair Mansion), File:Guard (Sinclair Mansion) chathead.png guard to activate the quest. Then, enter the house and search the murder scene, which is on the east side of the ground floor[?]. Inside will be a Item image of %7B%7B%3Apungent+pot%7D%7D, File:pungent pot.png pungent pot, which you should collect, along with the Item image of %7B%7B%3Acriminal%27s+dagger%7D%7D, File:criminal's dagger.png criminal's dagger. Investigate the smashed window to find the Criminal's thread (red).png criminal's thread.

Murder mystery (2).png

Go around to the various bedrooms belonging to the suspects to find a number of silver items, all contained within barrels in each room. (There are four rooms upstairs and two on the ground floor[?].) Look for:

Now, it's time to get your first piece of evidence. Go to the main entrance of the mansion, and go north-east until you reach the Sinclair Guard dog.png guard dog enclosure. Investigate the sturdy wooden gate for more information.

Next, go to the gardener's shed (the small house on the ground level, west side of the outside of the mansion) and investigate the sacks to find Item image of %7B%7B%3Aflypaper%7D%7D, File:flypaper.png flypaper. Take seven of these.

Murder Mystery (3).png

Go to the kitchen, and fill your pot with flour. Use it on the criminal's dagger; then, use the dagger on a piece of flypaper to get an Item image of %7B%7B%3Aunknown+print%7D%7D, File:unknown print.png unknown print. Dust each silver item with more flour, and use the flypaper to lift fingerprints from the items; then, compare them to the print of the criminal's dagger you found at the crime scene by using the flypaper pieces on the first flypaper print you got from the dagger.

Once you've got a match, you can drop all the silver items except for your proof.

Note: You may want to keep the silver necklace since it is a unique cosmetic item and cannot be obtained after completing the quest. If so, you will need to drop the item before completing the quest and pick it up afterwards. Otherwise, the item is taken from your bank or inventory upon quest completion.

You'll need more than just that for a conviction, though. Go to the entrance of the mansion, and talk to Chat head image of Gossip, File:Gossip chathead.png Gossip, and ask him who he thinks is responsible.

Talking to the Poison Salesman

Next, you need to gather info about the poison. There's a Chat head image of Poison Salesman, File:Poison Salesman chathead.png poison salesman, who sells it inside of the pub west of the Link to bank bank in Link to Seers' Village Seers' Village. Ask him to whom he sold the poison, and he'll tell you that everyone at the mansion bought some.

Go back to the house and ask the person who had the fingerprints on the criminal's dagger to find out what the poison was used on. Search the item they mention, detailed here:

Murder mystery (4).png

  • Anna - Compost heap
  • Bob - Beehive in cow pen
  • Frank - Family Crest, east of the front door
  • David - Spider nest, upstairs between the two rooms with three beds each in them
  • Carol - Sinclair mansion drain, west of the front door
  • Elizabeth - The fountain

You'll find that the subject was lying and didn't use their poison on what they had said they did.

Go back and talk to a guard and tell him you know who did it. Use the fingerprints of the person that did it on the unknown fingerprint. Show him the fingerprints, tell him about the poison, and show him the thread from the windowsill, since its colour will be a match to an article of the guilty party's clothing. Case closed!

Note: The guard will take the evidence from you. If you dusted the silver necklace you wanted to keep with flour, drop it before talking to the guard.


Murder Mystery reward scroll.png

Required for completing

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