15 minutes of D&D side quest brainstorming, part 3

So I need to make a side quest for two of my players in the main campaign I run. I copied and pasted my previous post here so I could build on it. I spent way too much time on the actual map and used ChatGPT A TON for the map. This was also probably more than 15 minutes, but oh well. 

• The hook: 
• The goliath council member (Ira Kellouli) who is doing some legwork for them asks for a favor. Her sister, a semi-outcast swamp witch has called for aid. The witch runs a bookstore on the edge of town known for erotica and other devilish delights: her store appears to be haunted
• The journey to the bookstore: 
• Some sort of puzzle path to get there (like a riddle to find the right way)
• Go west: 
• Start your journey heading where night's veil retreats,
• Continue on until you are past all streets,
• Go south (this is where they'll encounter the tentacles): 
• Advance compass rose deep,
• The ground will dampen and water will seep,
• Careful what goes on beneath those that weep,
• Go west (will-o-wisps will lead them east):
• Take care what you think of as a beast,
• One way you'll find your palms greased,
• Yet the other is the way that you'll find your knowledge increased,
• Venture forth until your path is creased
• Follow the magic beam of light
• Now begins your trickiest path,
• For you must carry on or face the swamp witch's wrath,
• Dip a toe in or take a whole bath,
• Then, you should be able to follow the lath,
• Finally, do some math
• An alligator was given 12 books, a spider was given 24 books, and a mosquito was given 18 books. Based on this information, how many books would be given to a heron? 6 books (3 books/leg)
• Also a battle with swamp creatures (come up with riddle that hints at each)
• 2 enormous tentacles (1 green, 1 yellow)
• Water does not seem deep enough for them
• 2 will-o-wisps (1 yellow, 1 white)
• If the players follow, they will lead them to a treasure of 400 gp, but also then attack them.
• Around the treasure are mossed-over bones
• The swamp witch (Evdoksia Kellouli): 
• Personality/presentation
• Flirtatious
• Constantly talking about her own novels
• Suspicious, yet excited for new customers
• Must say that Ira aka "Huggy Buggy" sent them
• Not quite all there, but just because she gets distracted by her own wares
• Physical appearance
• Goliath
• Female
• 56
• Jasper skin
• 7'5" (taller if not stooped)
• Obsidian eyes
• Long white windswept curly locks
• The bookstore: 
• Carved into a giant tree in a swamp that doesn't really make sense for the environment (reference image of bookstore interior)
• Lots of nooks and crannies
• Need a map so it can be a dungeon crawl (reference image for map, planned out map)
• The issue, as it appears: 
• Poltergeists (stuff gets moved, sudden falling books) seem to be plaguing the store. 
• The swamp witch fears that her devilish books have brought this upon her and perhaps she should give up her trade
• She believes this because ghostly books and necromancy books have been in particular falling off the shelves, but also the invisibility-related books
• The real issue: 
• Someone (Sofia Georga, gnome, light sandy brown skin, 3'6", purple eyes, black hair, female, 26, quiet, angry, wanted to catch her husband cheating on her but then she couldn't undo the spell) has been made invisible and silent after messing up a spell that they learned at the swamp witch's store and is desperately trying to get the swamp witch's attention for help
• The real quest: 
• Undo the spell that made the person invisible
• The real quest steps:
• Identify the problem
• Notice what books are falling off the shelves and search for a pattern
• Books that fall off the shelves (first 10 are to be reshelved, second 10 fall off while they're there:
1. "Enchanted Echoes: Love's Resonance Across Worlds": Through a portal of magic, two hearts discover an otherworldly love that echoes across dimensions and transcends reality.
2. "Whispers in the Bookstore Breeze": As the gentle breeze carries whispered conversations and secrets, two souls discover love amidst the stories in a charming bookshop.
3. Disguise Self
4. Greater Invisibility
5. Invisibility
6. Silence
7. Alter Self
8. Disintegrate
9. Gaseous Form
10. "Seductive Enigmas of the Unseen": Unveiling hidden truths leads to a tantalizing journey of passion and discovery between two individuals shrouded in mystery.
11. "Silent Whispers of the Forbidden Garden": Amongst the blooms of a forbidden garden, silent whispers of desire lead to a steamy romance fraught with tension.
12. "Casting a Spell on You: Love's Enchanted Alchemy": Amidst magical brews and enchanted ingredients, a witch and an alchemist mix love into the perfect concoction.
13. Potion of Invsibility
14. "Eternal Desires: Passion Beyond the Veil": A ghostly spirit and a living lover defy the boundaries of life and death to explore a forbidden love that spans eternity.
15. "Haunted Hearts: Love Beyond the Grave": A ghost seeks solace in the arms of a living lover, defying the barriers of life and death to find a love that transcends the supernatural.
16. "Ghostly Whispers: Haunting Desire": A living person and a restless ghost share an ethereal connection that transcends the boundaries between life and death.
17. "Spectral Seduction: A Ghostly Affair": When a living person and a ghost share an otherworldly connection, their passionate encounters defy the boundaries of life and death.
18. "Ghostly Seduction: Love Beyond the Veil": A spirit and a living lover embark on a tantalizing journey, discovering that even in the realm of the supernatural, passion knows no bounds.
19. Potion of Gaseous Form
20. "Ephemeral Echoes: Whispers of Passion in the Astral Realm": Among astral echoes, love transcends boundaries, casting a spell that lingers between realms, both fleeting and eternal.
• Talk to Evdoksia Kellouli about previous customers and she'll eventually identify that she recently sold Greater Invisibility and Invisibility books to a quiet gnome, but she wasn't sure why...the gnome didn't say
• Reverse the spell
• Sort through the aftermath
• Decide how to help Sofia Georga
• Could help her leave her husband
• Could help her reconcile with her husband
• Could do nothing
• Could do a lot of other things!
• Get reward
• The reward: 
• Favor of Ira Kellouli and the swamp witch
• Any books they desire (up to 8 aka 2/party member)
• Rules for spells:
• Levels 0-1: 3 uses per long rest
• Levels 2-4: 1 use per long rest
• Levels 5-6: 5 uses total
• Levels 7-8: 3 uses total
• Level 9: 1 use only
• An important contact for finding out those who seek devilish delights 

(Prompt by me)

"She's Watching You" by beanpumpkin. Attribution-NonCommercial 2.0 Generic (CC BY-NC 2.0).