Hollow Knight Silksong flea locations - The Lost Fleas quest guide

Where are the Silksong flea locations? Operating as Silksong's grub-equivalent, the canine-like fleas are scattered throughout Pharloom. Mimicking the first game, your job is to round up all of the fleas and return them to the Fleamaster's caravan as part of The Lost Fleas wish quest.

In Hollow Knight Silksong, you'll liberate a total of 30 fleas, taking you from Bone Bottom all the way to one of the game's far reaches. Though we'd always recommend keeping an eye out for the lil awoo'ing homies as you go, it'll be easier to go back and hoover up the remnants once you've unlocked all of Silksong's movement tech, including the double jump and wall jump, as well as all of the Bellways that punctuate the Silksong map. If you've missed a few on Hornet's journey, don't worry, as the list of lost fleas below will keep you on track.

Here are all of the lost fleas we've found in Silksong so far:

Flea 1: The Marrow

The first flea you'll likely come across is found in The Marrow. Simply follow the room's upper path, navigating the crumbling platforms until you reach the flea stuck in some vines.

Flea 2: Deep Docks

The second flea on the list requires Swift Step to access. Fortunately, you gain the means to dash right before you come across it. Once in the area, hit one of the levers on the left-hand side, lowering a block you can scale, before dashing up and across to the flea.

Flea 3: Far Fields

The next flea up is tucked away in Far Fields. To reach it, you can either loop up and over after reaching the area from Deep Docks for the first time, double back on yourself after embracing the safety of Pilgrim's Rest, or head due west from the Bellway if you're further ahead on your journey.

Flea 4: Greymoor

To reach the next flea, you'll need to travel all the way to the far east of Greymoor, into Craw Lake. Make your way up the vast, vertical area before floating down to the right into the marked area. Here you'll find a flea trapped in a container.

Flea 5: Bellhart

Flea five can be recovered from the tunnels above Bellhart. We accessed this area from Shellwood, opening up a hidden path before heading up. You'll need Cling Grip for this one, though you should have it unlocked by this point.

Flea 6: Shellwood

The Shellwood flea is a prickly customer, requiring you to navigate spitter plants and some floral pogo'ing. Head east from the bench connecting Shellwood and Moss Grotto, out into the large vertical tube. Now, hugging the left side up, pogo your way to the top, before coming down the right-hand side, taking care to dodge the plants.

Flea 7: Wormways

If you've shot out of the west side of Shellwood, or are on the hunt for the Wanderer Crest coming out of Moss Home, you'll likely find yourself in the Wormways. All you have to do for this one is head down the right side of the central shaft and knock out the wall to reveal a secret area. Follow it, and the flea is yours.

Flea 8: Hunter's March

While it's tempting to trek through Hunter's March as soon as you find it, we'd actually recommend skipping it until you've unlocked Cling Grip, and one of the Silksong crests that gives the classic pogo, to make life easier. Upon entering from The Marrow, stick to the left-hand wall, pogo'ing up the plants as you go. Upon reaching the top of the marked area, you'll find a caged flea.

Flea 9: The Slab

If you've gone and gotten yourself locked up in The Slab, now's the perfect time to scoop up another flea. After retrieving your gear and the Key of Heretic, head left from the bottom of the area with the two unlockable brass floor shaft doors. Continue past the Guardfly and enter the interactable door that sits in the background of the terrain. You'll find the flea trapped in a cage.

Flea 10: Sinner's Road

Sinner's Road is not for the faint-hearted, and represents one of the more challenging areas accessible in the first act. However, if you do make your way through the region, you'll get to save yet another flea.

Flea 11: Bilewater

If you've decided to embark on the alternate route to the end of Silksong's first act (you really are the Pale King's strongest soldier), then you'll next encounter a flea in Bilewater. Before you can free it, though, you'll have to dispatch two thieving vulpine enemies. Hold onto those Rosaries.

Flea 12: Blasted Steps

If you opted to ignore the currently-optional areas (Hunter's March, Wormways, and The Slab), and take the intended narrative path after Bellhart and Shellwood, you'll find yourself in the Blasted Steps. Though it looks like quite the slog to reach this flea, it's not bad at all considering there's a bench on the left side of the T-section (the right leads to the Last Judge boss fight).

And those are the Hollow Knight Silksong lost fleas we've discovered so far. It's best to turn them in to the Fleamaster every time you reach a new milestone, as the caravan will move to a new location that's closer to where you currently are in the narrative, giving you a safe place to rest.

If you're on the hunt for more unlockable goodies, check out all the Silksong Simple Key and door locations, as well as where to find the Key of Apostate if you're wondering where The Slab's final trinket is.