Using a Tale of Terror you can start an object-based storyline: at every step, you trade one object for the next one, risking a failure and go back to start, or yield and get a reward.
The chances of success at every step seem to be ~60-70%, so since the steps are many, there aren't really many chances to complete all the storyline – I'm not sure how many steps there are, I'm currently at Deal with a Devil.
So, my question is: am I missing something and there is some way to increase the odds, or the only way to do that is to try again and again until you are lucky enough to get all successes till the end?