The Lost Fleas: Find 5 Flea Locations: Fleas

Locate all 5 Fleas for 'The Lost Fleas' quest in Hollow Knight: Silksong. Detailed instructions for The Marrow, Deep Docks, Hunter's March, and Far Fields.

This guide details the locations of the five earliest Fleas to complete the 'The Lost Fleas' quest in Hollow Knight: Silksong.

1. The Marrow: From the Flea Caravan, head upwards and follow the path left. In the large vertical room, continue upwards, then left, and keep going up to reach the roof on the upper right. The flea is on a ledge.
2. Deep Docks: Unlock the Bell Beast area, one layer below the entrance from The Marrow. Find a breakable wall to the left of the summon point. Break it and follow the path to find the Flea on a ledge near intermittent lava flows.
3. Deep Docks (requires Swift Step): After obtaining the Swift Step dash ability, head to the first bench from the Deep Docks entrance. Proceed through the area to the first large vertical section and travel upwards. Enter the room on the right, then go upwards to find another ledge. The Flea is stuck in a rock; smash it to free it.
4. Hunter’s March: Go towards the Deep Rock entrance from The Marrow, but head upwards instead. Follow a path to the right into Hunter’s March. Defeat the mini-boss guarding the pass. In the first large room, use plants to aerial attack and platform, avoiding the obvious rightward path. Instead, take the left option and parkour to a hidden ledge at the top of the room where the Flea is located.
5. Far Fields: After defeating Lace in Deep Docks, go right from her boss room into Far Fields. Proceed through the first and second rooms. As you enter the second room, go straight up and follow the pathways right into a more vertical space. Jump up and go right into a dark room to find the final Flea.

Upon freeing these 5 fleas, return to the Fleamaster Caravan in The Marrow. You will be given the option to travel with the caravan to Greymoor. Accepting this will lead you to a new caravan site where you can speak to Grishkin by the fire to receive your reward: the Flea Brew. This tool belt item increases attack and movement speed, offering 2 charges before needing a refill, with a total reservoir of 30 charges. You must return to Grishkin to refill the entire bottle.