All 30 Lost Flea Locations in Silksong — Caravan Milestones Guide

All 30 Lost Flea locations in Silksong by area with unlock requirements, the Flea Caravan milestones, and what the Egg of Flealia opens in Act 3.

10/8/2026 v1.0.30000 Last updated: 10/8/2026 4 min read

FAQ

How many Lost Fleas are in Silksong?

30 total — 27 normal fleas plus three special cases: Kratt (an NPC in Greymoor), Vog (an NPC in Putrified Ducts who marks missing fleas for rosaries), and the Huge Flea (a fight in the Memorium).

What do I get for finding all the fleas?

Milestone rewards at 5/12/22/30: Flea Brew, a Spool Fragment, a Tool Pouch, and the Egg of Flealia — plus access to the Festival of the Flea in Act 3, where the Ecstasy of the End wish and the flea games award the Grand Champion prize and Pale Oil.

Where does the Flea Caravan move?

The Marrow (start) → Greymoor after 5 fleas → Blasted Steps after 12 (requires Last Judge defeated) → Pale Lake in Putrified Ducts after 22 (if visited) → Fleatopia. Its location matters: Fleatopia is a hard requirement for Silk and Soul / Act 3.

How do I find the last few fleas?

Rescue Vog in Putrified Ducts — she sells hints for missing flea locations in exchange for Rosaries once she joins the caravan.

The Lost Fleas are Silksong’s signature collectible — 30 winged, furry bugs caged, stuck, or asleep across every corner of Pharloom. Find them and the Flea Caravan follows you across the kingdom, paying out real upgrades at each milestone — and feeding into the requirements for Act 3.

What do the caravan milestones give me?

Fleas found	Caravan moves to	Reward
5	Greymoor	Flea Brew (skips the Moorwing fight if unbeaten)
12	Blasted Steps	Spool Fragment (requires Last Judge defeated)
22	Pale Lake, Putrified Ducts	Tool Pouch (must have visited the area first)
30	Fleatopia	Egg of Flealia + Festival of the Flea access in Act 3

Where are all 30 fleas?

Fleas can be collected in any order. Listen for whimpering and snoring — and remember that Kratt (#11), the Huge Flea (#23), and Vog (#28) count toward the total.

Early Act 1 (Marrow, Docks, March, Fields)

The Marrow — platforming up from the room’s start; requires Bell Beast beaten and the bellshrine activated.
Deep Docks — breakable wall left of the Bellway station.
Deep Docks — run left from where you got Swift Step, hit the upper-right lever.
Deep Docks — lower section, needs Clawline to open the door; guarded by an enemy gauntlet.
Hunter’s March — small platforming challenge; requires the Skarrgard defeated at the entrance.
Far Fields — caged; a Skarr Scout spawns when you hit the cage or step on the plate trap.
Far Fields — secret area via the Bellway station (Pilgrim’s Rest gate is locked); needs Drifter’s Cloak + Cling Grip.
Wormways — carried by an Aknid; kill it to rescue the flea.

Mid game (Greymoor, Bellhart, Shellwood, Steps)

Greymoor — pogo off the balloons, hug the right wall; needs the Craw Lake gauntlet cleared.
Greymoor — top of the left tower; needs Cling Grip.
Greymoor — Kratt: breakable wall above Halfway Home; he later opens a spa at the caravan.
Bellhart — defeat Sister Splinter, head right into the upper Bellveins; needs Cling Grip.
Shellwood — below the Gahlias; approach from the top of the room first.
Blasted Steps — top of the room left of the bellway station; needs Cling Grip.
Sinner’s Road — a Muckroach guards it and attacks on approach.

Late game (Bilewater, Underworks, and beyond)

Bilewater — behind a breakable wall; kill the two Snitchflies first.
Bilewater — left of the Exhaust Organ’s upper entrance; route goes through a secret passage inside the organ, needs the Mist traversed.
Bilewater — above the secret bench room; needs Cling Grip.
Underworks — unreachable from inside; enter from Wisp Thicket through a breakable ceiling; needs Cling Grip + Faydown Cloak.
Underworks — across the Cogwork Haulers room.
Choral Chambers — behind a platforming section.
Choral Chambers — behind a breakable wall; reach with Drifter’s Cloak mechanism or needle-bounce the sawblades.
Memorium — Huge Flea: free it, then beat it in a fight; needs Faydown Cloak.
The Slab — inside a mist-covered door; you’ll hear it barking.
The Slab — small chamber above the rest bench, top-left; needs Faydown Cloak.
Mount Fay — frozen in ice; break it out with the needle; needs Cling Grip.
Sands of Karak — top of the room behind encrusted coral (or Silk Soar).
Putrified Ducts — Vog: ride the Barnaks up and platform over; she’s an NPC who then joins the caravan.
Whispering Vaults — long platforming via Clawline + Cling Grip, through a hidden curtain passage below Vaultkeeper Cardinius’s room.
Whispering Vaults — top of the room; push the mid-left box to climb; needs Cling Grip.

What is the Festival of the Flea?

Once the caravan settles at Fleatopia and Act 3 is underway, the Ecstasy of the End wish unlocks — offered by Fleamaster Mooshka in Fleatopia or posted on Bellhart’s Wishwall: three flea games (Juggle, Dodge, Bounce) whose high-score targets award the Grand Champion title and Pale Oil — a final needle-upgrade material.

Stuck at 29? Find Vog first — she’ll mark the stragglers on your map for a handful of rosaries. And if a flea seems out of reach, it probably is yet: check whether it wants Cling Grip, the Faydown Cloak, or Clawline before assuming it’s a bug — the beginner guide covers which abilities unlock when.