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Hollow Knight: Silksong

The Lost Fleas: Find 5 Flea Locations

By
Craig Robinson
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The Lost Fleas is a wish that players can start within the Marrow region of Act 1. When players get to the mid section, they can head up to a ledge on the left and find a flea caravan, where you can start the Wish. Your task will be to find 5 fleas around the areas before you complete it. Here are the five flea locations to complete the Lost Fleas wish in Hollow Knight Silksong.

Flea Locations in Silksong: The Lost Fleas

(1 of 5) Head in a sort of upwardly direction to find a flea location by the cliff edge in the Marrow’s northern central region. Image via Gamer Guides / Team Cherry.

The five earliest Fleas we have found to complete the Lost Fleas quest are as follows:

Locations Instructions
The Marrow From the Flea Caravan, go up and follow the pathway left. No head up again when you get to the large vertical room. Once again, travel up and left, then keep going up and get to the roof on the upper right to find the flea on a ledge.
Deep Docks Unlock the Bell Beast area of the Docks, which is pretty much one layer below from where you first enter Deep Docks from the Marrow. When you find the area, look for a breakable wall to the left of where you summon your ride. Break the wall and follow it through to find the Flea on a ledge where the lava flows out intermittently.
Deep Docks Come back after unlocking the Swift Step dash ability, and head towards the first bench up from where you enter the Docks from the Marrow. Go through that area, get to the first large vertical section, then travel upwards. Enter the room on the right, then go upwards to find another ledge with the Flea stuck in a rock. Smash it to free it.
Hunter’s March Go to the area where you can enter Deep Rock from Marrow, and instead, go upwards. You should come across a pathway going right, which enters a new area called Hunter’s March. Defeat the mini boss guarding the pass and then follow into the first big room of that zone. Use the plants to aerial attack and platform to avoid the obvious pathway that heads right./ Instead take the left option and parkour to a hidden ledge at the top of the room. The Flea is there.
Far Fields Complete the Deep Docks are and defeat Lace. From her boss room, go right and enter Far Fields. Go through the first room, into the second room and go straight up as you enter it. Follow the pathways right and you should come across a more vertical space. Jump up and go right into that dark room to find the final flea.

The Lost Fleas Rewards

Agreeing to travel with the Flea Caravan after completing the Lost Fleas WIsh allows you to travel to Greymoor. Image via Gamer Guides / Team Cherry.

Speak to Grish to get your reward for completing the Lost Fleas Wish. Image via Gamer Guides / Team Cherry.

Once you have freed these 5 fleas, you can now return to the Fleamaster Caravan back in the Marrow. He will mention there are many more fleas still missing in the world, so send them back to him if you can.

But, when you complete the 5 fleas, you will be asked to travel with the caravan. If you say yes, you are sent to Greymoor, one of the other regions of Act 1. You will arrive at a new caravan site, where you can get your rewards. Speak to Grishkin by the fire. You will get the Flea Brew, which is a red tool belt item that will increase your attack speed and movement speed. The interesting thing about this tool is that you get 2 charges of it before needing to fill it up. It also comes with a reservoir of 30 charges, meaning you can refill it that many times for each charge. If you run out, you need to return to Greshkin at the caravan to refill the full bottle. So, keep in mind the location of the caravan, ideally with a map marker and come back later.

Skipping Moorwing

It’s worth mentioning that Moorwing is one of the harder bosses in Greymoor. Gamer Guides has several writers playing at the minute, and it seems that Moorwing and the caravan share the same spawn. Based on Discord and Reddit feedback, it seems like Moorwing is one of the harder fights of the area. So,m if you want to miss this boss, take the caravan to the location before entering Greymoor normally.

If you need anymore help with other early game wishes, why nt check out our guides on:

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Guide Information
  • Platforms,
    Linux, Mac, PC, PS4, PS5, Switch, Switch 2, XB One, XB X|S
  • Genre
    Metroidvania
  • Guide Release
    3 September 2025
  • Last Updated
    25 September 2025
    Version History
  • Guide Author

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