Dobby has no master. Dobby is a free elf!

“This exchange marked the beginning of Mr. Malfoy's long campaign to have me rem…”

“You foul, lying, evil little cockroach!”

“Directly above them, framed in the doorway from the Brain Room, stood Albus Dum…”

“All she had left of her old life and her old uncertainties was attacking famili…”