Requirements
None listed.
QUEST 43 · MEMBERS
Observatory Quest
The Observatory in south-west Ardougne has been ransacked by a family of nearby goblins. Can you help the professor to rebuild it?
- Difficulty
- Intermediate
- Length
- Short
- Quest points
- 2
- Released
- 17 March 2003
Talk to the Observatory professor in the Observatory Reception Room north of Castle Wars.
BEFORE YOU LEAVE THE BANK
Preparation
Requirements are gates. Recommendations are comfort and risk controls, not mandatory levels unless the game enforces them.
Items required
- 3 normal planks
- Bronze bar
- Molten glass
Recommended
- 20 Combat
- Antipoison (a 1-dose superantipoison spawns in a house next to the entrance to the Observatory Dungeon)
- Armour and some food for lower levels
- Stamina or energy potions
- Fast travel to the Observatory to start the quest - ring of dueling or Minigame Teleport to Castle Wars, Ourania Teleport, Spirit tree to Battlefield, Ardougne cloak to Ardougne Monastery, fairy ring BKP
- 23 Agility, 24 Ranged, 28 Strength (all stats boostable), a crossbow and mith grapple to create a permanent shortcut to the Observatory after completion of the quest.
Enemies to defeat
- Goblin guard (level 42) (Optional – can simply be trapped behind a column)
ACTION CHECKLIST
Walkthrough
Nested rows are alternatives, dialogue selections, or substeps under the action above them. Recheck the pinned source after a game update.
Fixing the Observatory
- 01
Speak with the Observatory professor. Dialogue: Talk about the Observatory quest. → An Observatory? → Sounds interesting. How can I help?
- 02
Give the Observatory professor the three planks, bronze bar and molten glass (speak to him 3 separate times Dialogue: Talk about the Observatory quest. each time).
- 03
Speak to the assistant.
- 04
Go up the east hill and down the stairs.
- 05
Once downstairs, search all the chests until you find the goblin kitchen key (most commonly found in south-eastern part when you go down the stairs, don't skip the dialogue once you find the key or you will not pick it up. If not found in the two chests directly south-east from the stairs, it is guaranteed to be in the last chest in the dungeon. The other chests will contain poisonous spiders.).
- 06
Head north from the entrance in the dungeon, then go west to the kitchen gate and prod the sleeping guard, then kill or trap him.
- 07
Open the gate and inspect the goblin stove.
- 08
Go back and speak to the professor with the lens mould in your inventory. Dialogue: Talk about the Observatory quest. He will give back the needed molten glass for the next part.
- 09
Use the molten glass on the lens mould.
- 10
Speak to the professor to give him the lens mould and the observatory lens. Dialogue: Talk about the Observatory quest.
- 11
Head back into the goblin dungeon.
- 12
Run past the kitchen and climb up the stairs in the south end of the dungeon. (During the cutscene, DO NOT CLICK on anything in the observatory or you'll have to restart the cutscene)
Finishing up
- 01
After the cutscene, talk to the professor upstairs and view the telescope. Dialogue: Talk about the Observatory quest.
- 02
Talk to the professor again and identify the constellation you saw (see table below). Dialogue: Talk about the Observatory quest.
- 03
Congratulations, quest complete!
QUEST COMPLETE
Rewards
- 2,250 Crafting Crafting experience
- Your item reward depends on what astrological sign you see when you look through the telescope. It is different for each person. Each one rewards an uncut sapphire as well as one of the following:
- Aquarius: 25 water runes
- Aries: 875 Attack Attack experience
- Cancer: An amulet of defence
- Capricorn: 875 Strength Strength experience
- Gemini: A black 2h sword
- Leo: 875 Hitpoints Hitpoints experience
- Libra: 3 law runes
- Pisces: 3 tuna
- Sagittarius: A maple longbow
- Scorpio: Weapon poison
- Taurus: A 1-dose super strength potion
- Virgo: 875 Defence Defence experience
- The Spirit of Scorpius will now give you a mould to make unholy symbols, and he will bless them for you too. He can be found in the graveyard north of the Observatory.
- Talk to the Observatory assistant after the quest and he will reward you with a jug of wine as well as tell you his and the professor's real name.
- Access to the grappling shortcut rock outside the Observatory.
- Completing this quest awards the player with 5 Kudos which can be claimed by talking to Historian Minas in the Varrock Museum.
REVISION-PINNED EVIDENCE
Verify the guide after updates.
Facts and walkthrough actions are adapted from Old School RuneScape Wiki contributors under CC BY-NC-SA 3.0. This page is fan-made and not affiliated with Jagex.
- Observatory Quest ↗full guide · revision 15270070
- Observatory Quest/Quick guide ↗quick guide · revision 15084388