What to know

  • Fleamaster Mooshka initiates "The Lost Fleas" sidequest in The Marrow after Bone Bottom.
  • Players must locate five hidden fleas at a time in early regions and safely return them to the flea caravan.
  • Completing the quest unlocks travel with the caravan and rewards like Flea Brew.
  • A flea juggling minigame becomes available at the caravan, offering additional gameplay and prizes.

Hollow Knight: Silksong features Fleamaster Mooshka, a key NPC connected to a collectible sidequest called "The Lost Fleas." Starting in The Marrow region, marked by a fluffy flea sign, players are tasked with finding five lost fleas scattered through early-game zones such as Deep Docks and Greymoor. Returning these fleas to Mooshka advances the quest and unlocks valuable rewards including a tool that boosts speed.

Who is Fleamaster Mooshka and where to find him

Fleamaster Mooshka is an NPC located at the flea caravan in The Marrow, a charred volcanic area accessible shortly after leaving Bone Bottom This NPC leads a traveling flea caravan and offers the Lost Fleas quest, which players begin by promising to help reunite his lost fleas. The flea caravan moves through different regions as progress is made.

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How to rescue the Lost Fleas

Here’s a step-by-step style breakdown.

How to rescue the first few fleas

Step 1

Explore The Marrow after meeting Mooshka. One of the earliest fleas is located in the upper central chamber of The Marrow, past spike traps and disappearing platforms.

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Step 2

Move to the Deep Docks. There are at least three fleas there:

  • One behind a destructible wall near the Bell Beast fast travel point.
  • Another climb-up/air dash path once you have Swift Step.
  • A third that requires a Simple Key to open a gated door.
Step 3

Head into Far Fields. There are fleas accessible via hidden tunnels, vertical chambers, wind currents, careful platforming, etc. Some are guarded by enemies or environmental hazards.

How to rescue all fleas/get map help

Step 4

Obtain traversal abilities as you progress:

  • Faydown Cloak → double jump.
  • Other mobility/tools like climbing, wall grip, etc.
Step 5

Meet Vog, an NPC who appears later (in Putrified Ducts). Vog allows you to spend Rosaries (in-game currency) to reveal on your map the locations of missing fleas. Very helpful for tracking all of them.

Step 6

As you rescue more fleas, the Flea Caravan moves to new regions. Moving thresholds (e.g. rescuing five fleas) unlock new Caravan locations (e.g. Greymoor).

What rewards and benefits come from helping Mooshka

Returning the lost fleas yields important gameplay benefits:

Reward Trigger / Condition Benefit
Flea Brew After rescuing 5 Lost Fleas and talking to Mooshka / Caravan reaches new region Buff to movement and attack speed.
New Caravan location Rescue thresholds (5, then ~15, then ~25 fleas) Access to new areas, vendors, resources.
Map markers for missing fleas Meet Vog in Putrified Ducts and spend Rosaries Makes completion easier.
Secret / late-game rewards Rescuing all Lost Fleas (e.g. tools or items) E.g. Egg of Flealia, access to further quests (e.g. Ecstasy of the End) etc.

Travel and exploration tips for success

  • Use newly acquired movement abilities like Swift Step and gliding to access flea locations.
  • Listen for distinct whines to help locate fleas hidden in tricky spots.
  • Explore off the beaten path and break illusory walls or secret passages when necessary.
  • Use benches to equip Flea Brew tool once unlocked for faster movement on the hunt.

Helping Fleamaster Mooshka with his Lost Fleas in Silksong enriches the game experience by unlocking new areas, travel options, and fun minigames. Exploring Pharloom thoroughly to rescue these hidden critters also grants useful tools that enhance gameplay. Approaching the quest methodically with attention to hidden spots and listening for cues ensures success in reuniting the fleas with their master.