Mr Mushroom Hollow Knight Guide

Mister Mushroom character icon, a hidden NPC in Hollow Knight
Hidden NPC and herald / Hollow Knight (2017)

The Master Herald. Seven hidden locations, a Spore Shroom translation requirement, and a secret ending cutscene.

Locations: 7 across HallownestRequired: Spore Shroom + Nail hitReward: Passing of the Age

Mister Mushroom faces away from the camera. Per the wiki, the Knight has to hit him with the Nail to make him turn around. Spells, charms, and environmental damage do not count; only a direct Nail strike. After he turns, the Knight can interact.

The dialogue is gibberish without preparation. According to the wiki, the Spore Shroom charm must be equipped for Mister Mushroom's speech to translate into readable text. Without Spore Shroom, the dialogue prompt fires but the words are mushroom-speech and he does not move on to his next location. The wiki specifies that Dream Nail dialogue is the one exception; the Dream Nail line reads in plain text without Spore Shroom.

He calls himself the Master Herald. Per the wiki, his role is to signal the end of an Age, and his Riddle Tablet in Kingdom's Edge gives the seven hidden locations as a poem in eight lines. Visiting all seven and completing the game unlocks the Passing of the Age achievement and a secret cutscene.

This guide covers the Riddle Tablet hints translated to plain locations, the order most efficient for a single run, the Spore Shroom and Nail-hit requirements, the Dream Nail line, and the Passing of the Age achievement that rewards the complete cycle.

  • Who he is Mister Mushroom icon Mister Mushroom, the Master Herald who signals an Age's end. Seven hidden locations across Hallownest.
  • Required charm Spore Shroom charm icon Spore Shroom. Without it, his speech is gibberish and he does not move to the next location.
  • Trigger Nail-hit Mr Mushroom icon hit him with the Nail first. He faces away by default; the Nail strike turns him around to enable dialogue.
  • Reward Passing of the Age achievement icon Passing of the Age achievement plus a secret cutscene after the credits roll. Requires beating the game.

Who Mister Mushroom Is

Mister Mushroom is a fungus NPC who calls himself the Master Herald. Per the wiki, his role in Hallownest's lore is to mark the end of an Age. The wiki specifies that his appearance is tied to the Knight's progression specifically; he only manifests after the Knight has reached certain story beats.

The visual design is part of the joke. Per the wiki, Mister Mushroom's default pose is facing away from the camera, with his cap and back visible. The Knight has to hit him to turn him around. His turned-around face is small, simple, and reads as comically polite given his title.

The wiki notes that Mister Mushroom is one of only a handful of NPCs whose existence is gated behind an optional charm. Without the Spore Shroom charm in the active slot, the Knight cannot understand him, and he refuses to relocate. This makes the entire arc opt-in for players who specifically went to Deepnest for the Spore Shroom pickup.

Spore Shroom and the Nail-Hit Requirement

Two requirements gate every Mr Mushroom encounter. Per the wiki, the first is a Nail hit to turn him around; the second is the Spore Shroom charm icon Spore Shroom charm equipped to translate his speech.

According to the wiki, the Spore Shroom charm is found in the Fungal Wastes itself, in a small chamber near the Mantis Lords route. The charm costs 2 notches. Mister Mushroom is the only NPC in the game where Spore Shroom is a strict gating requirement; other Spore Shroom effects (Whispering Roots translation, breakable wall hints) are optional layers on existing content.

The Nail-hit requirement is the second filter. Per the wiki, hitting Mister Mushroom with any other damage source (Vengeful Spirit, Desolate Dive, charm reflect) does not turn him around. The Nail itself, swung directly into his back, is the only trigger. Across multiple runs, players who try ranged spells to save Nail durability waste cycles; the wiki recommends a single Nail strike on approach.

Build Tip

Equip Spore Shroom before the Nail hit. Per the wiki, hitting him without Spore Shroom equipped still turns him around, but the dialogue plays as gibberish. Players who skip the equip step and only see the gibberish line tend to walk away and miss the fact that re-equipping the charm and re-engaging would unlock the readable text. The wiki notes the charm must be in the active slot at the moment of conversation, not just owned.

The Riddle Tablet in Kingdom's Edge

The Riddle Tablet is the in-game hint sheet. Per the wiki, the tablet is a glowing glyph in a secret room at the bottom right corner of Kingdom's Edge. The hidden opening sits on the right side of one of the vertical shafts above the giant Geo deposit in the special room with that deposit.

Reading the tablet without Spore Shroom shows generic mushroom glyphs. Per the wiki, equipping Spore Shroom translates the tablet into a poem. The poem has eight lines, with the first seven hinting at one location each, and the eighth closing the cycle:

  1. Spawn of self, their minds unite (Fungal Wastes)
  2. Aside the source of acid blight (Kingdom's Edge, near the tram and Isma's Grove)
  3. Aglow in darkest, winding depths (Deepnest, near Galien)
  4. Winds all howl above fossilstone steps (Howling Cliffs, in Mato's hut)
  5. Monarchflys in air set still (Ancient Basin, near the Monarch Wings location)
  6. To Root's domain and snail once shrill (Fog Canyon, near Overgrown Mound)
  7. Path of Wyrm, at new lands entered (King's Pass)
  8. There journeys end. The kingdom ventured. (closing line)

The wiki specifies that the Riddle Tablet is the canonical hint system. Visiting Kingdom's Edge with Spore Shroom and reading the tablet gives the player every Mister Mushroom location in their preferred poem form, without needing a wiki check on the order.

Mister Mushroom's 7 Hidden Locations

The seven locations are scattered across most of Hallownest. Per the wiki, he appears in each location only after the previous visit is complete. The order is fixed by his appearance flag, not by player choice.

#Riddle lineLocationSpecifics
1Spawn of self, their minds uniteFungal WastesNear the Fungal Core / Mushroom Tribe area
2Aside the source of acid blightKingdom's EdgeNear the Failed Tramway and Isma's Grove approach
3Aglow in darkest, winding depthsDeepnestNear the Galien Dream Warrior arena
4Winds all howl above fossilstone stepsHowling CliffsInside Nailmaster Mato's hut
5Monarchflys in air set stillAncient BasinNear the Monarch Wings pickup location
6To Root's domain and snail once shrillFog CanyonNear the Overgrown Mound
7Path of Wyrm, at new lands enteredKing's PassThe starting area at the top of Hallownest

Per the wiki, location 7 (King's Pass) is the symbolic kicker. The Knight starts the game in King's Pass, drops down into Hallownest, and only returns there for the final Mister Mushroom visit. The poem's closing line ("There journeys end") frames the return trip as the canonical conclusion to the Hallownest journey.

Recommended Visit Order

The wiki specifies that Mister Mushroom's appearance at each location is sequential. Visiting them out of riddle order does not fail the quest, but the next appearance only fires after the current one is complete. In practice, the riddle order is also the progression-efficient order.

According to the wiki, the recommended Spore Shroom run takes about 90 minutes if the Knight already has all six traversal abilities. Crystal Heart unlocks the Howling Cliffs approach to Mato's hut. Monarch Wings opens Ancient Basin's upper sections. Both are required for clean access; players without them have to backtrack on each location.

The wiki notes that the Fog Canyon visit (location 6) sits between two harder traversal sections (Crystal Peak detour and Queen's Gardens), and many runs skip Fog Canyon's Overgrown Mound on the main route. Players doing the Mister Mushroom chain need to detour there specifically.

Passing of the Age Achievement

The reward for the full cycle is the Passing of the Age achievement. Per the wiki, the achievement fires after the Knight visits all seven Mister Mushroom locations AND completes the game (any ending). Both conditions are required; visiting all seven without finishing the game does not unlock the achievement.

According to the wiki, the achievement comes with a secret cutscene. The cutscene plays after the credits roll on whatever ending the Knight completed, and shows Mister Mushroom commenting on the end of the Age. The wiki describes the cutscene as one of the more meditative endings the game offers, a quiet meditation rather than a dramatic boss reveal.

The wiki specifies that Passing of the Age counts toward the 112 percent file completion. It is part of the standard completionist checklist alongside the Steel Soul mode, all Warrior Dreams, and the Grimm Troupe path. Players going for 112 percent need this achievement on the save file.

Common Mr Mushroom Mistakes

  1. Reading the Riddle Tablet without Spore Shroom. Per the wiki, the tablet shows mushroom glyphs without the charm equipped. The translated poem only appears when Spore Shroom is in the active slot. Players who find the secret room and read the tablet without the charm see nothing useful.
  2. Trying to talk to Mr Mushroom without hitting him. Per the wiki, his default pose faces away and ignores the interaction prompt. The Nail strike is the canonical activation. Players who walk up and try the talk button get no response.
  3. Using Vengeful Spirit to turn him. Per the wiki, only a Nail strike turns him around. Spells, charm reflects, and environmental damage do nothing. Vengeful Spirit users who try the ranged option waste SOUL and still cannot trigger the conversation.
  4. Visiting out of riddle order. Per the wiki, the next location only fires after the current one is complete. Players who visit out of order find Mister Mushroom absent at the wrong spots and conclude (incorrectly) that they missed the spawn window. He spawns sequentially.
  5. Skipping the post-credits cutscene. Per the wiki, the Passing of the Age cutscene plays specifically after the credits finish rolling. Players who quit out of the credits or skip the cinematic miss the secret cutscene tied to the achievement, even though the achievement itself unlocks.

Mister Mushroom FAQ

Who is Mister Mushroom in Hollow Knight?

A hidden NPC who calls himself the Master Herald. Per the wiki, his role is to signal the end of an Age. He appears in seven fixed locations across Hallownest. The full cycle requires hitting him with the Nail to turn him around, then speaking to him with the Spore Shroom charm equipped.

Where do you find Mister Mushroom?

Seven locations: Fungal Wastes, Kingdom's Edge (near Failed Tramway and Isma's Grove), Deepnest (near Galien), Howling Cliffs (in Mato's hut), Ancient Basin (near Monarch Wings), Fog Canyon (near Overgrown Mound), and King's Pass. Per the wiki, the Riddle Tablet in Kingdom's Edge translates the poem hints when Spore Shroom is equipped.

How do you talk to Mister Mushroom?

Hit him with the Nail to turn him around, then approach with the Spore Shroom charm equipped. Per the wiki, both conditions are required. Without the Nail hit, he faces away and ignores the interaction prompt. Without Spore Shroom, his speech plays as gibberish and he does not move to the next location.

What is the Spore Shroom charm in Hollow Knight?

A charm found in the Fungal Wastes that translates mushroom speech and reveals hidden mushroom glyphs. Per the wiki, Spore Shroom costs 2 notches and is the gating requirement for the Mister Mushroom quest, the Riddle Tablet translation, and Whispering Root location hints in some areas.

What does the Passing of the Age achievement do?

It rewards the Knight for visiting all seven Mister Mushroom locations and completing the game. Per the wiki, the achievement unlocks a secret post-credits cutscene where Mister Mushroom comments on the end of the Age. The achievement counts toward 112 percent completion.

What is the Riddle Tablet in Kingdom's Edge?

A glowing glyph in a secret room at the bottom right corner of Kingdom's Edge. Per the wiki, the hidden opening is on the right side of one of the vertical shafts above the giant Geo deposit. Reading the tablet with Spore Shroom equipped reveals a poem with seven location hints and a closing line.

Can you Dream Nail Mister Mushroom?

Yes. Per the wiki, Dream Nail dialogue on Mister Mushroom plays in plain text even without Spore Shroom equipped. The Dream Nail line is the one exception to the Spore Shroom requirement. The wiki describes the line as a meditative musing about the cycle of Ages, consistent with his Master Herald role.

Does the order of Mister Mushroom locations matter?

Yes. Per the wiki, his appearance is sequential. Each location's spawn flag only fires after the previous visit is complete. Visiting out of riddle order means the next location remains empty until the prior one is checked off. The riddle order is the canonical sequence.

More Hollow Knight Guides

Mister Mushroom's arc connects to the Spore Shroom charm, the Kingdom's Edge tablet, and the post-credits content. These spokes pick up the threads.

Sources

Game data and screenshots adapted from hollowknight.fandom.com, used under CC BY-SA 3.0. Original content remains the property of the wiki contributors and Team Cherry.