It's surprising they haven't updated the Dorgeshuun quest series since 2007. The H.A.M storyline is very engaging and there's so much potential to add interesting improvements to the city of Dorgesh-Kaan. :
Lamp (Dorgesh-Kaan) - OSRS Wiki
Dorgesh-Kaan Lamps to be highlighted to ease a Sherlock Challenge · Issue #10069 · runelite/runelite · GitHub
Dorgesh-Kaan - RuneScape Guide - RuneHQ
Dorgesh-Kaan - The RuneScape Wiki
Dorgesh-Kaan | Old School RuneScape Wiki | Fandom
Dorgesh-Kaan Lamps to be highlighted to ease a Sherlock Challenge · Issue #10069 · runelite/runelite · GitHub