Fissif

Fissif is a thief from Buccaneer's Den whom the Avatar meets in Ultima Underworld II.

Fissif stole various things from Castle Britannia while the inhabitants were asleep, but he had bad luck and was locked in with the others, when the Guardian erected the Blackrock Dome over the castle. Confronted by the Avatar in the sewers where he hid, he returned the Pocket Watch to him.

After the Avatar made it clear that he was either to surrender and go to prison, or starve and die in the sewers, Fissif surrendered. He was found in the prison, where he was willing to sell his lockpicks and show the Avatar how to use them.

Trivia

 * Of course, going rough with Fissif will make him become pretty useless, since he will remember that.
 * Fissif also had noticed, that the Fellowship members that did escape, were meeting in Buccaneer's Den, planning something. Most likely they were waiting for the invasion from Atarka.
 * Of how he got there without notice, Fissif says he used a tunnel from Buccaneer's Den but it had closed off due the Blackrock Dome.