Hassad

Hassad the blind mage is a member of the Great Council, representing Skara Brae, who'd become imprisoned in Castle Blackthorn.

Hassad had fled Skara Brae when Blackthorn's men under the dark mage Flain moved into the city, hinding on the far-away island of New Magincia under the care of the merchant Kaiko. However, one day one of the Shadowlords noticed him and they then all appeared and abducted him to Castle Blackthorn. There as a prisoner, he was regularly questioned by the dark king in order to reveal the word of power to the dungeon Hythloth. He however didn't reveal it.

After having hear the story from Kaiko in Ultima V, the Avatar finally found Hassad in the dungeon of the castle. Hassad was very careful with what he would say and only after revealing that the Avatar knew Kaiko and telling Hasad the password of the Resistance, did he reveal the word.

However, he didn't want to be freed, seeing as that would be pointless at the moment. It is most likely that Lord British freed him after sending Blackthorn through the red gate.