In the Registered version, Beldin was apparently tricked by Harris and then locked up in the Sanctuary, mentioning he gets to look forward to being "questioned" by the Programmer. He is also intending to reveal the location of The Front's hidden base. Rowan sends the player to kill Beldin and take his ring back to him for proof. Also, in Beldin's cell is 10 Gold which the player can take for their own use.
In the Shareware version, Beldin is replaced by a beggar, who was framed by Harris for plotting to kill Governor Mourel.