Quirrel

An inquisitive, upbeat explorer, fascinated by the myths of Hallownest.

Quirrel is an observer, not a warrior, but he knows the Kingdom's dangers and has some skill with a Nail.

Initially found at the Temple of the Black Egg. In addition to a standard mask, he wears a second, larger mask on top of his head like a hat.

First Encounter, Temple of the Black Egg
Quirrel can be found at staring at the Black Egg, occasionally taking a thinking pose, as if staring at it in wonder. He briefly talks about how he feels drawn to the egg. He also explains that many travelers have come down into the ruins and fallen, and lightly suggests that they may have useful belongings that the player could use.

Second Encounter, Lake of Unn
Quirrel is sitting on a rock next to the bench inside the structure, polishing his nail. Upon listening to him, he explains that he wants to polish his nail before greeting the Moss Knight outside, thinking that the introduction could go poorly. He then tells the Knight that his blade is looking a little worn, and that it may not fare as well below the surface.

Third Encounter, Queen's Station
Inside the station, Quirrel can be found sitting on the edge of a platform above the entrance to the Stagway. He explains to the player this could have once been a bustling station, with bugs everywhere and bells ringing. Now only adventurers who delve into the depths even know it exists.

Fourth Encounter, Mantis Village
Short description MISSING

Fifth Encounter, City of Tears
Quirrel is found sitting on a bench on the way into the City of Tears, looking out the window. He tells the player he feels pulled into the city, but is hesitant to enter, not knowing why. He goes on to state that the rain here comes down endlessly from above, and through it, you can see the husks of sentries roaming the area, protecting the place that once was.

Sixth Encounter, Deepnest
After finding you way to the Spa in Deepnest, Quirrel can be seen resting in the water. He hints at the existance of a village in Deepnest, home to those who never accepted Hallownest's King.

Seventh Encounter, Crystal Peak
Short description MISSING

Eighth Encounter, Outside the Teacher's Archives
Upon entering the area outside of the Teacher's Archives, Quirrel can be found staring up at it, partially confused. After going through the acid lakes around him, and finding the Archives, he can't help but feel a sense of familiarity. He thought his sense of discovery was what brought him here, but "The building beckons me." he says.

Ninth Encounter, before Monomon
After inspecting the tank that Monomon the Teacher is inside, Quirrel will jump up from below. He explains the history of the Teacher, and that he played a part in her protection. He holds up his hat, which is revealed to be Monomon's mask, and undoes that protection to help you. Afterwards he sits down until you leave, in mourning of the teacher he once knew, and feeling his age catch up to him.

Final Encounter, Blue Lake
In the final encounter with Quirrel, he's sitting next to Blue Lake, next to the Resting Grounds. He tells the Knight that now, after seeing the world twice over, he finally feels at peace, and he is thankful he could see it's beauty again. He then goes on to tell the player that he's never seen anyone quite so intriguing as the Knight.

After the conversation, you can choose to sit next to Quirrel in silence and stare at the lake with him. Doing so rewards the "Witness" achievement.

Trivia
Квиррел
 * After the final encounter with Quirrel at the Blue Lake, upon re-entering the area, his nail will be planted into the ground. It is unknown what happens to Quirrel after this.
 * Quirrel is one of three characters in the game that can help during a boss fight. The others are Cloth during the Traitor Lord fight and Hornet while fighting the Hollow Knight.
 * The mask Quirrel wears on his head is identical to the mask of Monomon the Teacher. It is later revealed that Quirrel used to work under Monomon before the fall of Hallownest.