Hornet (Prequel)
Princess-protector of Hallownest. Wields a needle and thread.


Skilled protector of Hallownest's ruins. Wields a needle and thread.
I have seen this nimble little creature. I thought her prey and pounced at her, but with a flash she stabbed me with her flying stinger and darted away. Could she be... a Hunter?

introduce
Hornet is the mysterious princess-protector of Hallownest's ruins, the deuteragonist of Hollow Knight and the main protagonist of Hollow Knight: Silksong. She wields a needle and thread with deadly prowess. As a boss, Hornet appears in two forms, Hornet Protector in Greenpath and Hornet Sentinel in Kingdom's Edge. She must be defeated twice to unlock her Journal entry, but this can be either by defeating both forms or by defeating her Protector form once in Greenpath and once in Godmaster content Godhome.

In-game events
Hornet appears at first as a wandering and recurring antagonist to the Knight. As their journey progresses, her involvement influences their quest in Hallownest.
The Protector
Hornet is first encountered at the entrance to Greenpath, where she observes the Knight before moving away. She is quickly seen two more times dashing away from them throughout the overgrown Pilgrim's Way. The Knight finally catches up with her at the standing stones marking the entrance to the Lake of Unn, standing by the body of another Vessel. Relating the Knight's quest to the awakening of the Infection, she denies them to pursue any further. They clash, and when defeated, Hornet flees without a word.
Hornet reappears briefly before the end of the Pilgrim's Way in the Fungal Wastes, going in the direction of the City of Tears. She, later on, catches up with the Knight at the Fountain Square in the middle of the drenched capital. Finally understanding the truth behind their origin and their quest, she encourages them to learn of Hallownest's sacrifice. She then asks them before leaving to find her at the Cast-Off Shell if, knowing the truth, the Knight would still want to take part in Hallownest's perpetuation. This encounter does not occur if the Knight has defeated a Dreamer or visited either of the rooms just outside the Markoth and Hornet Sentinel boss fights.
The Sentinel
At Kingdom's Edge, Hornet wishes to test the Knight's resolve in one more battle before entrusting them with Hallownest's future. Upon her defeat at the top of her strength, she allows the Knight to have the King's Brand burned onto their shell. She believes they would still continue their quest even after learning the truth of their conception at the bottom of the Abyss. Her trust compels her to save the Knight caught in the collapse of the Cast-Off Shell, trapped under piles of white ash. She leaves again without saying a word after saving them.
If the Knight defeated Hornet at Kingdom's Edge before facing Herrah the Beast in Deepnest, Hornet appears next to them as they regain consciousness. Unlike her other appearances, she allows herself a respite to mourn the passing of her mother. She also expresses regrets that in order to repay her debt to her mother and perpetuate Hallownest, she had to let the Knight end her existence.
If the Knight has not encountered Hornet in Deepnest, she also appears at the top of the Abyss after they successfully acquire the Shade Cloak and safely return. She now believes that since the Knight ascended the Abyss unscathed, they have a choice in their journey: to prolong Hallownest's stasis, or to face the heart of the Infection instead.
The Sibling
After the Knight acquires the Void Heart and faces all three Dreamers, Hornet waits for them at the Temple of the Black Egg in the Forgotten Crossroads. She is impressed by their feat of both breaking the seals and accepting the Void within themself, casting them as an exceptional being. Once the Black Egg is opened, she tells the Knight she cannot follow them inside as the egg, built to sustain Vessels, would drain her were she to join. She, however, promises to aid as best as she can if the moment presents itself.
She fulfils her promise once the Hollow Knight has been nearly defeated. She breaks open their shell with her needle, allowing the Knight a way to use the Dream Nail on their sibling and reach the heart of the Infection.

Achievements

Test of Resolve
Defeat Hornet in Greenpath.

{S} Proof of Resolve
Defeat Hornet in Kingdom's Edge.

{S} Sealed Siblings
Defeat the Hollow Knight with Hornet by your side.

Trivia
Hornet was revealed in one of the Kickstarter updates:
"Quick with her deadly needle, relentless in battle, Hornet is exploring Hallownest to find the answer to a riddle that has plagued her. She has so far resisted the infection, but will still cut you down if you stand in her path."
"You may catch glimpses of Hornet during your exploration of Hallownest, although she always seems to be one or two steps ahead of you. If you do manage to catch up with her, be wary! Her needle can cut a bug down from thirty yards."
Team Cherry explained in a Reddit comment that an unused concept for Hornet had her be the "Child of Three Queens": born to Herrah, raised by the White Lady and trained under and named by Hive Queen Vespa. They cannot confirm so far if that aspect of her story is still canon.
This concept is realized in Silksong when Hornet revisits her own memories through the Snail Shamans' spell. Her Needle is also revealed to be a gift from the Hive and is forged from Hivesteel.
When questioned about which species Hornet is, Team Cherry explained that she is either a spider, related to spiders, or spiderlike.
Hornet's needle was made especially for her, and not many other bugs are skillful enough to wield it.
On Hollow Knight: Silksong's steam page, Hornet is called a "Princess Knight".
It can be speculated that the thread she uses is made by her, because her mother is Herrah.

