Terala is a character exclusively featured within the Winx Club Comic Series. Her one and only appearance is in Issue 107: The Dark Sirens alongside her fellow Sirens as they try to kidnap and forcibly convert Niobe into becoming their fifth and final Siren needed to attain invulnerability. According to Teredor, the four Sirens, Terala included, were once beautiful queens who faithfully served Andros in ancient times.
