Once Upon a Slime

For the achievement, see Once Upon a Slime (achievement).

Not to be confused with Once Upon a Time in Gielinor.

This article has a quick guide. Quick guides provide a brief summary of the steps needed for completion.

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Once Upon a Slime (#226)
Release date								10 February 2020 (Update)
Members								No
Voice Over								No
Official series								None
Age								Ambiguous
Timeline								Pathfinder
Start area								Rimmington
Combat								None
Entity icon
Advanced data
Quest ID								455
Quest create ID								301
Official difficulty								Novice
Links								Quests

Once Upon a Slime is a novice quest during which the player helps Peter get rid of the King Slime who is, once again, terrorising Rimmington.

Official description

“

King Slime has returned. Will you help Peter to eliminate the threat?

”

Overview

Start point	Talk to Peter in Rimmington. Show on map	2020#1
Membership requirement	Free to play
Official length[?]	Short to Medium
Requirements	Quests: Once Upon a Slime None None
Items required	Items from the tool belt are not listed unless they do not work or are not automatically added. None
Recommended	3 Rimmington tablets 2 Varrock teleports
Enemies to defeat	None

Return of the king

Talk to Peter near the well in Rimmington. He informs the player that King Slime has returned to Rimmington and is once more terrorising the town, as illustrated by a cutscene. Peter has come up with a solution to get rid of the King Slime by creating a Queen Slime. As the player expresses how ridiculous his plan is, the Queen Slime also shows up in Rimmington. Peter explains that if the King Slime and the Queen Slime are happy together, then neither will threaten the town. To set them up together, Peter suggests that the King Slime needs a top hat to seduce Queen Slime. To obtain the top hat, he directs you to Thessalia in her clothes shop in Varrock.

Top hat shenanigans

Talk to Thessalia in her store in Varrock for a giant top hat. Return to Peter in Rimmington. He admonishes the player that the top hat is too big, and asks the player to return to Thessalia to get a regular-sized top hat instead. Return to Thessalia in Varrock and update her. Unfortunately, she only specialises in giant top hats, but suggests that Eva may help.

Shrinking Machine

Visit Eva in south-eastern Varrock. She is in the same building as Aubury's Rune Shop in the north-west room (the room with the anvil icon on the mini map). Eva agrees to let the player be the first user of her Shrinking Machine. To use the machine you must first configure it. Right click on the shrinking machine and choose 'Shrink Something'. The options are shown sequentially; answering one question prompts the next one. The first letters of the correct answers put together spell SHRINK.

Question/machine part	Correct option
Button Panel One	1. Silver Button
Temperature Gauge	3. Hot
Button Panel Two	1. Red Button
Mode Of Functionality	2. Increase
Apply Voltage	2. No
Adjust Control Lever	1. KSL

The machine successfully changes the giant top hat into a regular-sized top hat. Return to Peter in Rimmington, who suggests putting the top hat on the King Slime. A cut scene is shown in which the Queen Slime seems to be uninterested in King Slime despite his new accessory.

Gloop gloop gloop

Talk to Peter, whose next idea is poking the Queen Slime to figure out what exactly she is attracted to. Go up to the Queen Slime and poke her in order to receive pink goop. Talk to Peter again; he will then give the player a bucket. The pink goop can be used to locate the source of Queen Slime's distraction, which turns out to be the contents of Hetty's cauldron in the house directly east of the well in Rimmington. Use an empty bucket on the cauldron to receive a bucket of purple goop. Peter suggests using the purple goop on the King Slime like cologne. Use the bucket of purple goop on the King Slime and a cut scene ensues, during which the Queen Slime consumes and combines with the King Slime, leaving Peter and the player in shock. The couple leaves Rimmington, hopefully for good this time. Finish the quest by talking to Peter one last time. He keeps the top hat while you keep the pink goop, which is revealed to be a sentient entity.

Rewards

• 1 quest point
• Cooking XP lamp worth 2,500 XP
• Lil Miss Gloop pet
• A bucket
• 2 Treasure Hunter keys (Ironman accounts will not receive these)
  

Additional rewards/activities

• King Slime's Top Hat override by talking to Eva again after the quest

Achievements

• Once Upon a Slime ( 0) – Complete this quest.
• Let's Hope it Doesn't Un-Shrink ( 5) – Claim the King Slime's Top Hat cosmetic override from Eva after 'Once Upon a Slime'.

Required for completing

Once Upon a Slime is not currently required for any quests or miniquests.

Transcript

This article on a quest has an associated dialogue page. Click here for a transcript of possible conversations and other messaging encountered throughout the quest. Click here for a transcript of the quest's journal entry.

Credits

Once Upon a Slime
Developers
Developer				Mod Campfire, Mod Rain

Update history

This information has been compiled as part of the update history project. Some updates may not be included – see here for how to help out!

• patch 24 February 2020 (Update):
  • The quest marker for 'Once Upon a Slime' is now removed from the minimap and worldmap upon completion.

• patch 17 February 2020 (Update):
  • King Slime's Top Hat now appears at the start of the newest list within the player wardrobe.
  • Fixed a typo that occurs in the Once Upon A Slime quest.
  • Completing the quest will now allow players to re-equip their Completionist capes without having to log back in.

• update 10 February 2020 (Update):
  • Quest released.

Trivia

• Upon completion of the quest, the Adventurer's Log states: "I helped Peter eliminate the King Slime threat.";
• The quest name is a play on the stock phrase once upon a time.