Shadow Messenger

The Shadow Messenger appeared in the book Lost Tales. He was a messenger corrupted by Melkor during his time spent in Aman after the siege of Utumno. After Melkor destroyed the Two Trees with Ungoliant, Melkor sent his Shadow Messenger to state his demands as an ambassador to all 14 of the Valar. Tulkas, who did not see him as an ambassador, broke him, and then threw him down the mountains--slaying him in the process.