Brumm

"Mrmm. A song that never ends... is no song at all."

- Brumm

The Brumm is an NPC in Hollow Knight. He is involved in the quest of the Grimm Troupe.

Lore
Brumm is a member of the Grimm Troupe. Although he initially encourages the Knight to search for flames for the Grimmchild, he begins having second thoughts about the Ritual later on.

He does not approve of the Ritual playing itself out repeatedly and endlessly, considering himself and the rest of the Troupe slaves to it. Brumm believes the gathering of flames desecrates the dead Kingdom of Hallownest. He wants to make the Ritual fail by destroying the Nightmare Lantern, the anchor keeping the Grimm Troupe in Hallownest.

Should the Knight complete the Ritual, he bears them no hatred. If the Grimm Troupe is banished, Brumm disappears, an amnesiac bug named Nymm appearing in Dirtmouth who greatly resembles him.

Hollow Knight
When the Grimm Troupe is first summoned, he can be found playing an accordion just inside of Grimm's tent in Dirtmouth.

After Grimm has been defeated, Brumm appears in Distant Village where he gives the Knight a Flame if they do not already have three Flames. He then offers to help the Knight banished the Grimm Troupe.

He is next found in the Howling Cliffs in the room of the Nightmare Lantern. He jabs his staff into the brazier so it can be broken. Breaking the brazier makes Brumm and the Grimm Troupe disappear.

Location
Brumm appears in three locations depending on how far the Grimm Troupe's quest has progressed.

Trivia

 * The accordion that Brumm plays has limbs, implying that it is a dead or live bug.