Defeating the Large Red Ant Boss

• Fight the **red ant boss** in The Marrow’s upper-right corridor, located above Grindle’s prison bench.
• After victory, use **downward attacks** on glowing red orbs to ascend vertically through the chamber.
• Break the cage at the top to rescue the first flea.

Rewards for Rescuing All Fleas

• Return to **Fleamaster Mooshka** after freeing all five fleas to unlock a **shortcut** on Greymoor’s far left, skipping a major area.
• Conversations with rescued fleas at the caravan grant three uses of ***Flea Brew***, which temporarily boosts Hornet’s speed and attack damage.

FAQ

Where does The Lost Fleas quest start?

Initiate the quest by speaking to Fleamaster Mooshka in The Marrow.

How many fleas are in Hollow Knight Silksong?

There are **five** fleas hidden across multiple zones.

What is the hardest flea to find?

The Far Fields flea requires either the **Drifter’s Cloak** or expert platforming skills.

What do you get for saving all the fleas?

Unlock a Greymoor shortcut and gain ***Flea Brew*** for temporary combat advantages.