Ok, so I just recently browsed FF.net, looking at new stories that have been uploaded from LBT, when I noticed something that I find unsettling.
A user named RichardTerminator has written a series story named "The Incredible Life" and uploaded them on FF.net. The basic premise of the series is that humans use a time machine and travel to the Great Valley (I haven't really read enough of the story to know exactly what happens).
In two of these stories, RichardTerminator has included my character Blacktail from Revenge II. He never asked for my permission to use this character, and yet he is using them in his story. Now this is mostly my fault, because I never put a copyright on Blacktail, so I should have known that something like this would have happened. Still, I'm a little upset that he is using my character and he never asked me if I could. He also is using Scarbeak from Revenge II, but Scarbeak isn't my character so I'm not as concerned about it.
I probably already know the answer to this question because I never copyrighted Blacktail, but is there any possible course of action that I can and should take against this? I really don't want this user to be taking credit for my character, even though I never officially copyrighted said character.
