Remember when Harry, Ron, Hermione, and Griphook broke into the Lestrange's vault in the DH? Remember how Hermione was disguised as Bellatrix? Well how did they get her hair?
This might have just been some part I forgot but does anyone know?
"Their plans were made, their preparations complete; in the smallest bedroom a single long, coarse black hair (plucked from the sweater Hermione had been wearing at Malfoy Manor) lay curled in a small glass phial on the mantelpiece."
