My first time through the game, I missed several of the quests; among them the Siamese Twins/Halfogre Island conspiracy. On my second play-through, the one I used to write this guide, I discovered that quest, and became quickly caught up in it. I really wanted to find and punish the wicked gnomes. I wanted to rescue or at least avenge the sexually abused human women, and I wanted to do something about the enslavement of the unfortunate halfogres. Unfortunately, the game gives you no option to do anything about any of these things ever. What you get to do is listen to a smug gnome give a very poor X-filesish summary of why you can't do anything about any of it, and then nothing. No option to outwit the gnomes, betray the gnomes, anything. Despite having the ear of two or three of the most powerful men on the gameworld, you don't have the option of mentioning it to any of them. The programmers just assume you're going to be satisfied with "Ha ha, can't do anything about it! Those wily gnomes. Wasn't that a funny plot about kidnapping, rape, and racial enslavement?"
The 'conclusion' to this plot came at a time that I was starting to get frustrated with the slow and tedious movement interface of Arcanum. When I killed the gnome conspirator and the game penalized me because his alignment was 'good,' that was really the final straw for me. Folks, it isn't good to engage in slavery, rape, breeding humans as farm animals, and political sabotage. It's not even funny. It's a pretty darn serious plot, deserving of a resolution. If you're going to allow room in the game for evil characters to kill innocent people, you're going to have to allow room in the game for good characters to care about pursuing things like this.
So I stopped playing. Not in protest or anything; it just wasn't worth slogging through the awful movement screens, tedious combats, and ugly graphics anymore.