SCROOMS: Bluestone Caverns Scrooms and Their Rarity

The Bluestone Caverns is the second area in SCROOMS, and its Index page holds 15 cards. Fourteen of those scrooms are named and spread across five rarity tiers, from Common up to a single Fabled. The last card stays a silhouette until it is caught.

Quick answer: The Bluestone Caverns page lists 14 named scrooms across Common, Uncommon, Rare, Wondrous and Fabled, with one card still hidden.

Bluestone Caverns scrooms by name and rarity

The Index sorts the caverns’ scrooms by rarity, and uncaught cards already show their tier colour before you catch them. Grey marks Common, green Uncommon, teal Rare, purple Wondrous and orange-red Fabled. The bottom rows of the page carry the teal Rare cards, the purple Wondrous cards and the one orange-red Fabled card.

Scroom	Rarity
Flintcap	Common
Fungstone	Common
Gemscroom	Common
Nightcap	Common
Quartzbud	Common
Crystallina	Uncommon
Trufflecrust	Uncommon
Azurine	Rare
Lumencap	Rare
Malignyte	Rare
Mossbud	Rare
Amorlith	Wondrous
Endoscroom	Wondrous
Gaion	Fabled

Index card details for the caught scrooms

Each caught card lists the scroom’s rarity, its frequency range and a short Index line. The Common and Uncommon cards read as follows.

The Bluestone Caverns page of the SCROOMS Index at Completion 46% with seven caught cards — The caverns' Index page at 46%: seven cards caught, the rest still silhouettes.

Scroom	Rarity	Frequency	Index line
Fungstone	Common	52.5 Hz – 87.5 Hz	“Confused him for a statue at first!”
Quartzbud	Common	78.7 Hz – 131.2 Hz	—
Flintcap	Common	78.7 Hz – 131.2 Hz	“He’d make a good spear.”
Gemscroom	Common	93.7 Hz – 156.2 Hz	“Ooh! Precious!”
Nightcap	Common	93.7 Hz – 156.2 Hz	“You woke him from his slumber. Shame on you!”
Crystallina	Uncommon	217.5 Hz – 362.5 Hz	“Purple sapphire? Or no… is it amethyst?”
Trufflecrust	Uncommon	217.5 Hz – 362.5 Hz	“Mushrooms growing atop a mushroom. Mush-ception.”

Flintcap's Index entry open under Bluestone Caverns with the page at 46% completion — Flintcap selected in the Bluestone Caverns Index, showing its model, rarity and the page’s 46% completion.

Crystallina highlighted in the Bluestone Caverns Index with its Uncommon details shown — Crystallina highlighted in the Index, displaying its Uncommon rarity and frequency range.

Frequencies run higher than Songkeeper’s Grove

Frequencies in the caverns are far above those in the first area. Grove Commons fall at roughly 18 Hz to 75 Hz; cavern Commons reach 156 Hz, and Uncommons rise to 362 Hz. Catch in the first room by the entrance; from the very first song, you mostly get Fungstone, Nightcap, Quartzbud, Crystallina and Gemscroom.

Scroom	Caught frequency
Fungstone	60 – 83 Hz
Nightcap	95 – 157 Hz
Quartzbud	93 – 113 Hz
Gemscroom	125 Hz
Flintcap	104 Hz
Crystallina	224 – 250 Hz
Melodic Trufflecrust	250 Hz

How to get into the Bluestone Caverns

Take the main quest Beyond the Grove, which reads “Find your way into the Bluestone Caverns.” and pays 2,925 XP and 500 Chimes.

Walk through the part of Songkeeper’s Grove marked Bluestone Approach, banner “The trees thin as the path winds toward the cold stone of the caverns beyond.” Follow it to a grass ledge facing a blue cave mouth across a gap.

The grass ledge at the end of the Bluestone Approach facing the blue cave mouth across a gap — The ledge at the end of the Bluestone Approach, facing the cave mouth across the gap.

Open your backpack with G and put on the Songtreads. The boots make you run much faster, so take a run-up and jump to carry the gap in a running jump.

Landing shows “Bluestone Caverns” with the line “The sound of metal striking rock resonates throughout the dense cavern air.” Once you have entered, the Titles page adds a “Bluestone Caverns [0/5]” group.

Bluestone Caverns area banner on landing inside the cave mouth — The “Bluestone Caverns” banner on landing.

Catch a Fungstone for Marina

At the landing, Marina wears a yellow hard hat and sits on a bench. She offers the quest New Ground, “Catch and give Marina a Fungstone.”, which awards 420 XP and 130 Chimes. When you arrive, a line appears: “Marnie might have something for me now.”

Catching in the first room right by the entrance gives mostly Fungstone, Nightcap, Quartzbud, Crystallina and Gemscroom from the very first song, so a Fungstone comes quickly. Fungstone sits at 52.5 Hz to 87.5 Hz. To hand it in, press G to open the backpack and hold the Fungstone from there before giving it to Marina.

Holding a Fungstone next to Marina, who shows a green exclamation mark — Holding the Fungstone: Marina's “?” turns into “!”.

Cavern view with the prompt Press G to open backpack above the hotbar — The “Press G to open backpack!” prompt above the hotbar, used to hold the Fungstone for Marina.

You can confirm progress on the Index page for the caverns, where caught scrooms fill in their rarity colour and the page tracks a completion percentage. With 7 of the 15 cards caught, the page reads “Completion: 46%”.