Gone

"Gone" is the 11th episode of season 6 of the television show Buffy the Vampire Slayer.

A social services worker threatens to take Dawn from Buffy; the Trio accidentally makes Buffy invisible.

Quotes and trivia
Buffy is whistling a song from "Once More With Feeling" as she is leaving the Social Services building.

Xander asks Buffy if she has been feeling ignored, a reference to Marcie the invisible girl from season one.