I Collected All 30 Silksong Fleas So You Don’t Have To

Look, I’ll be honest: when I dove back into Hollow Knight: Silksong in 2026, I did not expect my late-game life to revolve around rescuing 30 misbehaving fleas from every cursed corner of Pharloom. But here we are. Hornet is apparently a full-time flea therapist now, and if you want that juicy Egg of Flealia plus the fourth Needle upgrade, you need to catch them all.

Let’s get one thing straight: this is not a quick errand. In total, there are 30 Fleas scattered across Pharloom. Almost every Flea can be found in Acts 1 and 2, but you’ll need nearly every movement ability—except Silk Soar—before you can reasonably grab them all. Yes, that means you’ll be returning to areas you thought you’d escaped forever.

The Flea Caravan Milestones 🐛

The Flea Caravan does not move just because you ask nicely. It moves based on how many little idiots you’ve rescued. Here is the threshold table I wish I had from hour one:

Fleas Found
What Happens

5
Caravan moves from Marrow to Greymoor

15
Caravan moves from Greymoor to the Last Judge boss room in the Blasted Steps

25
Caravan reaches its final home in the Putrefied Ducts

30
You get the Egg of Flealia and unlock the real party

That middle stretch between 15 and 25 is pure emotional damage, by the way. The game suddenly remembers it has platforming, and you will remember you have no Silk Soar.

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#game