Telgoran is a character in Might and Magic Book One: The Secret of the Inner Sanctum. He must be visited to complete the Bring the Vellum Scroll to Telgoran quest.
When the party brings the Vellum Scroll to Agar, he tells them to deliver it to his protégé Telgoran in Dusk. The party must travel there and talk to the elf to finish the quest.
Telgoran gives them 1500 gold and 2500 experience, and mentions that "if treasure is what you want... the brothers you must find - Portsmith and Algary are combined." This begins the next mandatory quest, Find the Brothers and the Gold Key.