MSCW Forgotten Hollow Guide: Release Date, Quests, Monsters, and Boss

Forgotten Hollow is an upcoming hunting area in MapleStory Classic World, expected to open on November 18, 2026. The new region is designed for characters around levels 39–59 and introduces new monsters, questlines, NPCs, and a level 60 field boss. Preparing your character, equipment, and Mesos ahead of its arrival can make the first trips into the area much easier. Since the region is not open yet, the details below are based on the available roadmap and preview data rather than live-server testing.

When Does Forgotten Hollow Open

Forgotten Hollow is planned for the November 18, 2026 update, according to the roadmap shown during MapleStory Fest 2026.

The region is expected to serve characters between levels 39 and 59. Its content includes a cave area, a fairy settlement, 10 regular monster types, 15 quests, and four main quest chains. Unlike a simple return of an old MapleStory location, Forgotten Hollow is presented as a new area created for Classic World.

How to Enter Forgotten Hollow

The main entrance is listed at The Tree Tunnel At the Forest Up North, near Ellinia. The introductory questline begins with Grendel the Really Old in the Magic Library, who directs players toward the strange activity in the forest.

The roadmap also mentions another route from deep inside Sleepywood. However, the Ellinia-side entrance is the clearer route in the available area information. The Sleepywood connection should be checked in the live game after the region opens.

Players should start by speaking with Grendel and following the introductory quests. Completing Welcome to the Hollow is reported to unlock the other three quest chains, although each chain still has its own level requirement.

Forgotten Hollow Quests and NPCs

The opening storyline introduces the disturbance affecting the forest and the fairies living inside Forgotten Hollow. Several early quests require players to collect materials from familiar monsters before they can explore the new area.

The four main quest chains have different starting levels and NPCs:

Some quests also provide useful equipment upgrades. Welcome to the Hollow lists a Greater weapon scroll for the player’s class as a reward. Zelya’s The Road Back Home, available at level 43, requires 50 Aqumanders and 50 Echopuses and can reward a random Greater earring scroll. At level 50, Daniel’s A Heart of Stillness and Wood asks for 30 Cursed Dolls and 20 Duskmander Tails, with a Greater Bottomwear HP Scroll among its listed rewards.

Forgotten Hollow Monsters and Levels

The region contains monsters ranging from level 39 to level 59. Their listed HP and EXP values can help players estimate which areas suit their characters, although actual combat performance should be checked after the servers open.

The listed weaknesses offer a useful starting point when choosing attacks. Lightning is effective against Aqumanders and Echopuses, while Fire is listed as a weakness for Raffles, Rafflesia, and Myewood. Sporewood is listed as weak to both Holy and Fire. These are database values, so players should confirm that the same weaknesses apply in the live game.

Other monsters shown in the area’s map data include Zombie Mushrooms, Zombie Lupins, Lupins, Curse Eyes, Evil Eyes, and Fairies.

Hunting Maps and Quest Materials

Different parts of Forgotten Hollow contain different monster groups. Knowing where to look can save time when completing collection quests or searching for suitable training spots.

For quest materials, focus on the monsters named in each objective rather than farming random enemies. Lupins are needed for The Roots of Regret, while Cold Eyes provide the Rotten Root Fragments required for Tracing the Resonance. Later quests also ask for materials from Aqumanders, Echopuses, and Duskmanders.

Rotten Mushmom: Level 60 Field Boss

Rotten Mushmom is the major field boss associated with Forgotten Hollow. The available boss data lists her at level 60 with 86,400 HP and 844 EXP. She is classified as undead, with weaknesses to Holy and Fire and resistance to Poison.

Her listed Physical Attack and Magic Attack stats are 752 and 827 respectively. These are monster attack stats, not fixed amounts of damage that every player will receive. Your actual damage taken will depend on your character’s defense and other combat factors.

The listed location is Someone Else’s Grave, a hidden map connected to Decayed Tunnel I. Community reports also describe HP regeneration, but the exact live-server behavior has not yet been confirmed. Players should avoid relying on a specific regeneration rate or respawn timer until the boss has been tested after release.

Because Rotten Mushmom is level 60, characters near the upper end of the area’s hunting range may want to prepare better equipment and recovery items before challenging her. Poison-based attacks may also be less effective due to her listed resistance.

Prepare for the Forgotten Hollow Opening

Before entering Forgotten Hollow, make sure your character has suitable equipment, enough potions, and room in the inventory for quest materials. Characters around levels 39–59 can start by following the Ellinia storyline, then move into the other quest chains as they meet the required levels. If you need extra funds for equipment upgrades and supplies, you can also choose MapleStory Classic World Mesos for sale as another option.

Forgotten Hollow has several reasons to explore beyond its new hunting maps. Its quest rewards include Greater scrolls, its monster levels provide another training option, and Rotten Mushmom offers a new boss encounter. Once the area opens, verify monster placements and map connections in the live version before planning longer training or farming routes.

The U4GM Team