"But Dobby shouted, "You shall not harm Harry Potter! ... He got up, face livid, and pulled out his wand, but Dobby raised a long, threatening finger. "You shall go now," he said fiercely, pointing down at Mr. Malfoy. "You shall not touch Harry Potter. You shall go now."

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The elf’s eyes found him, and his lips trembled with the effort to form words. ‘Harry... Potter...’ And then with a little shudder the elf became quite still, and his eyes were nothing more than great, glassy orbs sprinkled with light from the stars they could not see.

— J. K. Rowling